390502921050 has 384 divisors, whose sum is σ = 1198551859200. Its totient is φ = 92697696000.

The previous prime is 390502921013. The next prime is 390502921063. The reversal of 390502921050 is 50129205093.

It is a happy number.

390502921050 is a `hidden beast` number, since 3 + 9 + 0 + 502 + 92 + 10 + 50 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 390502920996 and 390502921014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 148988740 + ... + 148991360.

It is an arithmetic number, because the mean of its divisors is an integer number (3121228800).

Almost surely, 2^390502921050 is an apocalyptic number.

390502921050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 390502921050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599275929600).

390502921050 is an abundant number, since it is smaller than the sum of its proper divisors (808048938150).

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

390502921050 is a wasteful number, since it uses less digits than its factorization.

390502921050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 390502921050 in words is "three hundred ninety billion, five hundred two million, nine hundred twenty-one thousand, fifty".