42023438 has 16 divisors (see below), whose sum is σ = 66134016. Its totient is φ = 19988760.

The previous prime is 42023431. The next prime is 42023441. The reversal of 42023438 is 83432024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42023431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395 + ... + 11177.

It is an arithmetic number, because the mean of its divisors is an integer number (4133376).

Almost surely, 2^42023438 is an apocalyptic number.

42023438 is a deficient number, since it is larger than the sum of its proper divisors (24110578).

42023438 is a wasteful number, since it uses less digits than its factorization.

42023438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42023438 is about 6482.5487271597. The cubic root of 42023438 is about 347.6673120778.

The spelling of 42023438 in words is "forty-two million, twenty-three thousand, four hundred thirty-eight".