42537628 has 12 divisors (see below), whose sum is σ = 85075312. Its totient is φ = 18230400.

The previous prime is 42537601. The next prime is 42537667. The reversal of 42537628 is 82673524.

42537628 is an admirable number.

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, 759573 + ... + 759628.

Almost surely, 2^42537628 is an apocalyptic number.

It is an amenable number.

42537628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42537628 is a wasteful number, since it uses less digits than its factorization.

42537628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519212 (or 1519210 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 42537628 is about 6522.0877025689. The cubic root of 42537628 is about 349.0795624880.

It can be divided in two parts, 4253 and 7628, that added together give a square (11881 = 109²).

The spelling of 42537628 in words is "forty-two million, five hundred thirty-seven thousand, six hundred twenty-eight".