469956636 has 72 divisors (see below), whose sum is σ = 1270445904. Its totient is φ = 145958400.

The previous prime is 469956607. The next prime is 469956689. The reversal of 469956636 is 636659964.

469956636 = 1791² + 1792² + ... + 1926².

It is a happy number.

469956636 is a `hidden beast` number, since 46 + 9 + 9 + 566 + 36 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58011 + ... + 65613.

It is an arithmetic number, because the mean of its divisors is an integer number (17645082).

Almost surely, 2^469956636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 469956636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635222952).

469956636 is an abundant number, since it is smaller than the sum of its proper divisors (800489268).

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

469956636 is a wasteful number, since it uses less digits than its factorization.

469956636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7726 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The square root of 469956636 is about 21678.4832495265. The cubic root of 469956636 is about 777.4740973508.

The spelling of 469956636 in words is "four hundred sixty-nine million, nine hundred fifty-six thousand, six hundred thirty-six".