396372290 has 16 divisors (see below), whose sum is σ = 738073080. Its totient is φ = 153081600.

The previous prime is 396372283. The next prime is 396372313. The reversal of 396372290 is 92273693.

It can be written as a sum of positive squares in 4 ways, for example, as 239847169 + 156525121 = 15487^2 + 12511^2 .

It is a super-3 number, since 3×396372290³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683111 + ... + 683690.

Almost surely, 2^396372290 is an apocalyptic number.

396372290 is a deficient number, since it is larger than the sum of its proper divisors (341700790).

396372290 is a wasteful number, since it uses less digits than its factorization.

396372290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366837.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 396372290 is about 19909.1006828536. The cubic root of 396372290 is about 734.5720988750.

The spelling of 396372290 in words is "three hundred ninety-six million, three hundred seventy-two thousand, two hundred ninety".