396502278480 has 1920 divisors, whose sum is σ = 1864392671232. Its totient is φ = 72990720000.

The previous prime is 396502278479. The next prime is 396502278517. The reversal of 396502278480 is 84872205693.

396502278480 is a `hidden beast` number, since 3 + 96 + 5 + 0 + 2 + 2 + 78 + 480 = 666.

It is a super-2 number, since 2×396502278480² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1197891915 + ... + 1197892245.

Almost surely, 2^396502278480 is an apocalyptic number.

396502278480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396502278480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932196335616).

396502278480 is an abundant number, since it is smaller than the sum of its proper divisors (1467890392752).

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

396502278480 is a wasteful number, since it uses less digits than its factorization.

396502278480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 396502278480 in words is "three hundred ninety-six billion, five hundred two million, two hundred seventy-eight thousand, four hundred eighty".