10157640 has 64 divisors (see below), whose sum is σ = 31138560. Its totient is φ = 2649600.

The previous prime is 10157639. The next prime is 10157663. The reversal of 10157640 is 4675101.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10157640.

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, 4740 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (486540).

Almost surely, 2^10157640 is an apocalyptic number.

10157640 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 10157640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15569280).

10157640 is an abundant number, since it is smaller than the sum of its proper divisors (20980920).

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

10157640 is a wasteful number, since it uses less digits than its factorization.

10157640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 10157640 is about 3187.1052696765. The cubic root of 10157640 is about 216.5696554526.

The spelling of 10157640 in words is "ten million, one hundred fifty-seven thousand, six hundred forty".