42658472 has 8 divisors (see below), whose sum is σ = 79984650. Its totient is φ = 21329232.

The previous prime is 42658463. The next prime is 42658493. The reversal of 42658472 is 27485624.

It can be written as a sum of positive squares in only one way, i.e., 26770276 + 15888196 = 5174^2 + 3986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2666147 + ... + 2666162.

Almost surely, 2^42658472 is an apocalyptic number.

It is an amenable number.

42658472 is a deficient number, since it is larger than the sum of its proper divisors (37326178).

42658472 is a wasteful number, since it uses less digits than its factorization.

42658472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332315 (or 5332311 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 42658472 is about 6531.3453438017. The cubic root of 42658472 is about 349.4098135224.

The spelling of 42658472 in words is "forty-two million, six hundred fifty-eight thousand, four hundred seventy-two".