42881446 has 32 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 19362816.

The previous prime is 42881413. The next prime is 42881467. The reversal of 42881446 is 64418824.

42881446 = 154² + 155² + ... + 509².

It is a super-2 number, since 2×42881446² = 3677636822101832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111771 + ... + 112153.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^42881446 is an apocalyptic number.

42881446 is a deficient number, since it is larger than the sum of its proper divisors (28035674).

42881446 is a wasteful number, since it uses less digits than its factorization.

42881446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528.

The product of its digits is 49152, while the sum is 37.

The square root of 42881446 is about 6548.3926272025. The cubic root of 42881446 is about 350.0175392571.

The spelling of 42881446 in words is "forty-two million, eight hundred eighty-one thousand, four hundred forty-six".