42311864 has 16 divisors (see below), whose sum is σ = 90668400. Its totient is φ = 18133632.

The previous prime is 42311851. The next prime is 42311887. The reversal of 42311864 is 46811324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377729 + ... + 377840.

It is an arithmetic number, because the mean of its divisors is an integer number (5666775).

Almost surely, 2^42311864 is an apocalyptic number.

It is an amenable number.

42311864 is an abundant number, since it is smaller than the sum of its proper divisors (48356536).

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

42311864 is a wasteful number, since it uses less digits than its factorization.

42311864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755582 (or 755578 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 42311864 is about 6504.7570285138. The cubic root of 42311864 is about 348.4608989722.

The spelling of 42311864 in words is "forty-two million, three hundred eleven thousand, eight hundred sixty-four".