42625238 has 4 divisors (see below), whose sum is σ = 63937860. Its totient is φ = 21312618.

The previous prime is 42625229. The next prime is 42625259. The reversal of 42625238 is 83252624.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656308 + ... + 10656311.

It is an arithmetic number, because the mean of its divisors is an integer number (15984465).

Almost surely, 2^42625238 is an apocalyptic number.

42625238 is a deficient number, since it is larger than the sum of its proper divisors (21312622).

42625238 is a wasteful number, since it uses less digits than its factorization.

42625238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21312621.

The product of its digits is 23040, while the sum is 32.

The square root of 42625238 is about 6528.8006555569. The cubic root of 42625238 is about 349.3190515385.

The spelling of 42625238 in words is "forty-two million, six hundred twenty-five thousand, two hundred thirty-eight".