363805638 has 32 divisors (see below), whose sum is σ = 860232960. Its totient is φ = 100359840.

The previous prime is 363805619. The next prime is 363805643. The reversal of 363805638 is 836508363.

363805638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 363805638.

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, 148128 + ... + 150563.

It is an arithmetic number, because the mean of its divisors is an integer number (26882280).

Almost surely, 2^363805638 is an apocalyptic number.

363805638 is an abundant number, since it is smaller than the sum of its proper divisors (496427322).

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

363805638 is a wasteful number, since it uses less digits than its factorization.

363805638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298732.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 363805638 is about 19073.6896797657. The cubic root of 363805638 is about 713.8765920618.

The spelling of 363805638 in words is "three hundred sixty-three million, eight hundred five thousand, six hundred thirty-eight".