42556704 has 48 divisors (see below), whose sum is σ = 112728672. Its totient is φ = 14056448.

The previous prime is 42556699. The next prime is 42556733. The reversal of 42556704 is 40765524.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×42556704² = 3622146110687232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8887 + ... + 12809.

It is an arithmetic number, because the mean of its divisors is an integer number (2348514).

Almost surely, 2^42556704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42556704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56364336).

42556704 is an abundant number, since it is smaller than the sum of its proper divisors (70171968).

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

42556704 is a wasteful number, since it uses less digits than its factorization.

42556704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 42556704 is about 6523.5499538212. The cubic root of 42556704 is about 349.1317362682.

The spelling of 42556704 in words is "forty-two million, five hundred fifty-six thousand, seven hundred four".