140469640 has 64 divisors (see below), whose sum is σ = 336389760. Its totient is φ = 52608000.

The previous prime is 140469629. The next prime is 140469653. The reversal of 140469640 is 46964041.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 140469596 and 140469605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170269 + ... + 171091.

It is an arithmetic number, because the mean of its divisors is an integer number (5256090).

Almost surely, 2^140469640 is an apocalyptic number.

140469640 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 140469640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168194880).

140469640 is an abundant number, since it is smaller than the sum of its proper divisors (195920120).

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

140469640 is a wasteful number, since it uses less digits than its factorization.

140469640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 140469640 is about 11851.9888626340. The cubic root of 140469640 is about 519.8293818941.

The spelling of 140469640 in words is "one hundred forty million, four hundred sixty-nine thousand, six hundred forty".