424306836 has 30 divisors (see below), whose sum is σ = 1109222730. Its totient is φ = 141435504.

The previous prime is 424306823. The next prime is 424306837. The reversal of 424306836 is 638603424.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 229704336 + 194602500 = 15156^2 + 13950^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 424306836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424306837) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 654471 + ... + 655118.

It is an arithmetic number, because the mean of its divisors is an integer number (36974091).

Almost surely, 2^424306836 is an apocalyptic number.

It is an amenable number.

424306836 is an abundant number, since it is smaller than the sum of its proper divisors (684915894).

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

424306836 is a wasteful number, since it uses less digits than its factorization.

424306836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309605 (or 1309594 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 424306836 is about 20598.7095712329. The cubic root of 424306836 is about 751.4383278540.

The spelling of 424306836 in words is "four hundred twenty-four million, three hundred six thousand, eight hundred thirty-six".