42386790 has 16 divisors (see below), whose sum is σ = 101728368. Its totient is φ = 11303136.

The previous prime is 42386789. The next prime is 42386791. The reversal of 42386790 is 9768324.

It is an interprime number because it is at equal distance from previous prime (42386789) and next prime (42386791).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42386791) 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, 706417 + ... + 706476.

It is an arithmetic number, because the mean of its divisors is an integer number (6358023).

Almost surely, 2^42386790 is an apocalyptic number.

42386790 is an abundant number, since it is smaller than the sum of its proper divisors (59341578).

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

42386790 is a wasteful number, since it uses less digits than its factorization.

42386790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412903.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 42386790 is about 6510.5138046087. The cubic root of 42386790 is about 348.6664629506. Note that the first 3 decimals are identical.

The spelling of 42386790 in words is "forty-two million, three hundred eighty-six thousand, seven hundred ninety".