390061056 has 352 divisors, whose sum is σ = 1386588672. Its totient is φ = 94371840.

The previous prime is 390061043. The next prime is 390061081. The reversal of 390061056 is 650160093.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (352).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4021200 + ... + 4021296.

Almost surely, 2^390061056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390061056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693294336).

390061056 is an abundant number, since it is smaller than the sum of its proper divisors (996527616).

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

390061056 is a wasteful number, since it uses less digits than its factorization.

390061056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 390061056 is about 19749.9634430041. The cubic root of 390061056 is about 730.6524822461.

The spelling of 390061056 in words is "three hundred ninety million, sixty-one thousand, fifty-six".