42238370 has 16 divisors (see below), whose sum is σ = 80501688. Its totient is φ = 15901440.

The previous prime is 42238367. The next prime is 42238381. The reversal of 42238370 is 7383224.

It can be written as a sum of positive squares in 4 ways, for example, as 32684089 + 9554281 = 5717^2 + 3091^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124061 + ... + 124400.

Almost surely, 2^42238370 is an apocalyptic number.

42238370 is a deficient number, since it is larger than the sum of its proper divisors (38263318).

42238370 is a wasteful number, since it uses less digits than its factorization.

42238370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248485.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42238370 is about 6499.1053230425. The cubic root of 42238370 is about 348.2590278741.

The spelling of 42238370 in words is "forty-two million, two hundred thirty-eight thousand, three hundred seventy".