390042798 has 32 divisors (see below), whose sum is σ = 826848000. Its totient is φ = 122236800.

The previous prime is 390042739. The next prime is 390042817. The reversal of 390042798 is 897240093.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151623 + ... + 154173.

It is an arithmetic number, because the mean of its divisors is an integer number (25839000).

Almost surely, 2^390042798 is an apocalyptic number.

390042798 is an abundant number, since it is smaller than the sum of its proper divisors (436805202).

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

390042798 is a wasteful number, since it uses less digits than its factorization.

390042798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 390042798 is about 19749.5012088913. The cubic root of 390042798 is about 730.6410819273.

The spelling of 390042798 in words is "three hundred ninety million, forty-two thousand, seven hundred ninety-eight".