10557438 has 8 divisors (see below), whose sum is σ = 21114888. Its totient is φ = 3519144.

The previous prime is 10557433. The next prime is 10557439. The reversal of 10557438 is 83475501.

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

10557438 is an admirable number.

It is a super-2 number, since 2×10557438² = 222918994247688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10557399 and 10557408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10557431) 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, 879781 + ... + 879792.

It is an arithmetic number, because the mean of its divisors is an integer number (2639361).

Almost surely, 2^10557438 is an apocalyptic number.

10557438 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.

10557438 is a wasteful number, since it uses less digits than its factorization.

10557438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759578.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 10557438 is about 3249.2211374420. The cubic root of 10557438 is about 219.3745181441.

The spelling of 10557438 in words is "ten million, five hundred fifty-seven thousand, four hundred thirty-eight".