390466666920 has 256 divisors, whose sum is σ = 1330925230080. Its totient is φ = 90802252800.

The previous prime is 390466666879. The next prime is 390466666921. The reversal of 390466666920 is 29666664093.

It is a super-2 number, since 2×390466666920² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390466666921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3411339 + ... + 3523941.

It is an arithmetic number, because the mean of its divisors is an integer number (5198926680).

Almost surely, 2^390466666920 is an apocalyptic number.

390466666920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390466666920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665462615040).

390466666920 is an abundant number, since it is smaller than the sum of its proper divisors (940458563160).

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

390466666920 is a wasteful number, since it uses less digits than its factorization.

390466666920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112736 (or 112732 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 57.

The spelling of 390466666920 in words is "three hundred ninety billion, four hundred sixty-six million, six hundred sixty-six thousand, nine hundred twenty".