1471206540 has 192 divisors, whose sum is σ = 4409717760. Its totient is φ = 365890560.

The previous prime is 1471206533. The next prime is 1471206559. The reversal of 1471206540 is 456021741.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1471206498 and 1471206507.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8809537 + ... + 8809703.

It is an arithmetic number, because the mean of its divisors is an integer number (22967280).

Almost surely, 2^1471206540 is an apocalyptic number.

1471206540 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 1471206540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204858880).

1471206540 is an abundant number, since it is smaller than the sum of its proper divisors (2938511220).

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

1471206540 is a wasteful number, since it uses less digits than its factorization.

1471206540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1471206540 is about 38356.3103022175. The cubic root of 1471206540 is about 1137.3423625694.

The spelling of 1471206540 in words is "one billion, four hundred seventy-one million, two hundred six thousand, five hundred forty".