390911949220 has 48 divisors (see below), whose sum is σ = 888691120128. Its totient is φ = 143581011840.

The previous prime is 390911949217. The next prime is 390911949227. The reversal of 390911949220 is 22949119093.

It is not an unprimeable number, because it can be changed into a prime (390911949227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3886224 + ... + 3985543.

It is an arithmetic number, because the mean of its divisors is an integer number (18514398336).

Almost surely, 2^390911949220 is an apocalyptic number.

It is an amenable number.

390911949220 is an abundant number, since it is smaller than the sum of its proper divisors (497779170908).

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

390911949220 is a wasteful number, since it uses less digits than its factorization.

390911949220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871980 (or 7871978 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 390911949220 in words is "three hundred ninety billion, nine hundred eleven million, nine hundred forty-nine thousand, two hundred twenty".