390046422 has 16 divisors (see below), whose sum is σ = 781364592. Its totient is φ = 129803520.

The previous prime is 390046411. The next prime is 390046441. The reversal of 390046422 is 224640093.

It is a super-3 number, since 3×390046422³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 390046422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48979 + ... + 56382.

It is an arithmetic number, because the mean of its divisors is an integer number (48835287).

Almost surely, 2^390046422 is an apocalyptic number.

390046422 is an abundant number, since it is smaller than the sum of its proper divisors (391318170).

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

390046422 is a wasteful number, since it uses less digits than its factorization.

390046422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105983.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 390046422 is about 19749.5929578308. The cubic root of 390046422 is about 730.6433447858.

The spelling of 390046422 in words is "three hundred ninety million, forty-six thousand, four hundred twenty-two".