1469471640 has 256 divisors, whose sum is σ = 5530291200. Its totient is φ = 304072704.

The previous prime is 1469471629. The next prime is 1469471651. The reversal of 1469471640 is 461749641.

It is an interprime number because it is at equal distance from previous prime (1469471629) and next prime (1469471651).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1469471592 and 1469471601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 577491 + ... + 580029.

It is an arithmetic number, because the mean of its divisors is an integer number (21602700).

Almost surely, 2^1469471640 is an apocalyptic number.

1469471640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1469471640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2765145600).

1469471640 is an abundant number, since it is smaller than the sum of its proper divisors (4060819560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1469471640 is a wasteful number, since it uses less digits than its factorization.

1469471640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1469471640 is about 38333.6880563298. The cubic root of 1469471640 is about 1136.8951216296.

The spelling of 1469471640 in words is "one billion, four hundred sixty-nine million, four hundred seventy-one thousand, six hundred forty".