397414836 has 144 divisors (see below), whose sum is σ = 1282479744. Its totient is φ = 104789376.

The previous prime is 397414807. The next prime is 397414837. The reversal of 397414836 is 638414793.

It is a junction number, because it is equal to n+sod(n) for n = 397414791 and 397414800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397414837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86206 + ... + 90698.

Almost surely, 2^397414836 is an apocalyptic number.

397414836 is a gapful number since it is divisible by the number (36) 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 397414836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641239872).

397414836 is an abundant number, since it is smaller than the sum of its proper divisors (885064908).

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

397414836 is a wasteful number, since it uses less digits than its factorization.

397414836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532 (or 4518 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 397414836 is about 19935.2661381783. The cubic root of 397414836 is about 735.2155635947.

It can be divided in two parts, 39 and 7414836, that added together give a cube (7414875 = 195³).

The spelling of 397414836 in words is "three hundred ninety-seven million, four hundred fourteen thousand, eight hundred thirty-six".