42938460 has 36 divisors (see below), whose sum is σ = 130247208. Its totient is φ = 11450208.

The previous prime is 42938459. The next prime is 42938471. The reversal of 42938460 is 6483924.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×42938460² = 3687422694343200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119094 + ... + 119453.

It is an arithmetic number, because the mean of its divisors is an integer number (3617978).

Almost surely, 2^42938460 is an apocalyptic number.

It is an amenable number.

42938460 is an abundant number, since it is smaller than the sum of its proper divisors (87308748).

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

42938460 is a wasteful number, since it uses less digits than its factorization.

42938460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238562 (or 238557 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 42938460 is about 6552.7444632001. The cubic root of 42938460 is about 350.1725951464.

The spelling of 42938460 in words is "forty-two million, nine hundred thirty-eight thousand, four hundred sixty".