396419287 has 16 divisors (see below), whose sum is σ = 456019200. Its totient is φ = 340813440.

The previous prime is 396419281. The next prime is 396419321. The reversal of 396419287 is 782914693.

It is a de Polignac number, because none of the positive numbers 2^k-396419287 is a prime.

It is a super-2 number, since 2×396419287² = 314296502211176738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396419287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396419281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150639 + ... + 153247.

It is an arithmetic number, because the mean of its divisors is an integer number (28501200).

Almost surely, 2^396419287 is an apocalyptic number.

396419287 is a deficient number, since it is larger than the sum of its proper divisors (59599913).

396419287 is a wasteful number, since it uses less digits than its factorization.

396419287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366.

The product of its digits is 653184, while the sum is 49.

The square root of 396419287 is about 19910.2809372445. The cubic root of 396419287 is about 734.6011299328.

The spelling of 396419287 in words is "three hundred ninety-six million, four hundred nineteen thousand, two hundred eighty-seven".