10557642 has 8 divisors (see below), whose sum is σ = 21115296. Its totient is φ = 3519212.

The previous prime is 10557641. The next prime is 10557643. The reversal of 10557642 is 24675501.

It is an interprime number because it is at equal distance from previous prime (10557641) and next prime (10557643).

It is a sphenic number, since it is the product of 3 distinct primes.

10557642 is an admirable number.

It is a super-2 number, since 2×10557642² = 222927609200328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10557641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879798 + ... + 879809.

It is an arithmetic number, because the mean of its divisors is an integer number (2639412).

Almost surely, 2^10557642 is an apocalyptic number.

10557642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10557642 is a wasteful number, since it uses less digits than its factorization.

10557642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759612.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 10557642 is about 3249.2525294289. The cubic root of 10557642 is about 219.3759311167.

The spelling of 10557642 in words is "ten million, five hundred fifty-seven thousand, six hundred forty-two".