42237428 has 12 divisors (see below), whose sum is σ = 73993920. Its totient is φ = 21096312.

The previous prime is 42237409. The next prime is 42237457. The reversal of 42237428 is 82473224.

It is a junction number, because it is equal to n+sod(n) for n = 42237394 and 42237403.

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, 926 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (6166160).

Almost surely, 2^42237428 is an apocalyptic number.

It is an amenable number.

42237428 is a deficient number, since it is larger than the sum of its proper divisors (31756492).

42237428 is a wasteful number, since it uses less digits than its factorization.

42237428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206 (or 11204 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 42237428 is about 6499.0328511249. The cubic root of 42237428 is about 348.2564388976.

The spelling of 42237428 in words is "forty-two million, two hundred thirty-seven thousand, four hundred twenty-eight".