396672550 has 12 divisors (see below), whose sum is σ = 737811036. Its totient is φ = 158669000.

The previous prime is 396672547. The next prime is 396672571. The reversal of 396672550 is 55276693.

It is a super-2 number, since 2×396672550² = 314698223847005000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396672497 and 396672506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3966676 + ... + 3966775.

It is an arithmetic number, because the mean of its divisors is an integer number (61484253).

Almost surely, 2^396672550 is an apocalyptic number.

396672550 is a deficient number, since it is larger than the sum of its proper divisors (341138486).

396672550 is a wasteful number, since it uses less digits than its factorization.

396672550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933463 (or 7933458 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 43.

The square root of 396672550 is about 19916.6400278762. The cubic root of 396672550 is about 734.7575364496.

The spelling of 396672550 in words is "three hundred ninety-six million, six hundred seventy-two thousand, five hundred fifty".