390494219220 has 144 divisors (see below), whose sum is σ = 1413217270080. Its totient is φ = 89255815488.

The previous prime is 390494219191. The next prime is 390494219249. The reversal of 390494219220 is 22912494093.

390494219220 is a `hidden beast` number, since 39 + 0 + 494 + 21 + 92 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (390494219191) and next prime (390494219249).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7352494 + ... + 7405413.

It is an arithmetic number, because the mean of its divisors is an integer number (9814008820).

Almost surely, 2^390494219220 is an apocalyptic number.

390494219220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390494219220 is an abundant number, since it is smaller than the sum of its proper divisors (1022723050860).

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

390494219220 is a wasteful number, since it uses less digits than its factorization.

390494219220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14757939 (or 14757924 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 390494219220 in words is "three hundred ninety billion, four hundred ninety-four million, two hundred nineteen thousand, two hundred twenty".