42338490 has 16 divisors (see below), whose sum is σ = 101612448. Its totient is φ = 11290256.

The previous prime is 42338489. The next prime is 42338497. The reversal of 42338490 is 9483324.

It is not an unprimeable number, because it can be changed into a prime (42338497) 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, 705612 + ... + 705671.

It is an arithmetic number, because the mean of its divisors is an integer number (6350778).

Almost surely, 2^42338490 is an apocalyptic number.

42338490 is an abundant number, since it is smaller than the sum of its proper divisors (59273958).

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

42338490 is a wasteful number, since it uses less digits than its factorization.

42338490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411293.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 42338490 is about 6506.8033626351. The cubic root of 42338490 is about 348.5339767769.

The spelling of 42338490 in words is "forty-two million, three hundred thirty-eight thousand, four hundred ninety".