69631380 has 288 divisors, whose sum is σ = 270547200. Its totient is φ = 14556672.

The previous prime is 69631361. The next prime is 69631417. The reversal of 69631380 is 8313696.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 638766 + ... + 638874.

It is an arithmetic number, because the mean of its divisors is an integer number (939400).

Almost surely, 2^69631380 is an apocalyptic number.

69631380 is a gapful number since it is divisible by the number (60) 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 69631380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135273600).

69631380 is an abundant number, since it is smaller than the sum of its proper divisors (200915820).

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

69631380 is a wasteful number, since it uses less digits than its factorization.

69631380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 69631380 is about 8344.5419287100. The cubic root of 69631380 is about 411.4038334580.

The spelling of 69631380 in words is "sixty-nine million, six hundred thirty-one thousand, three hundred eighty".