70866432 has 240 divisors, whose sum is σ = 253212960. Its totient is φ = 18690048.

The previous prime is 70866413. The next prime is 70866437. The reversal of 70866432 is 23466807.

70866432 is a `hidden beast` number, since 7 + 0 + 8 + 6 + 643 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70866437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5451258 + ... + 5451270.

It is an arithmetic number, because the mean of its divisors is an integer number (1055054).

Almost surely, 2^70866432 is an apocalyptic number.

70866432 is a gapful number since it is divisible by the number (72) 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 70866432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126606480).

70866432 is an abundant number, since it is smaller than the sum of its proper divisors (182346528).

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

70866432 is an equidigital number, since it uses as much as digits as its factorization.

70866432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 70866432 is about 8418.2202394568. The cubic root of 70866432 is about 413.8219496212.

The spelling of 70866432 in words is "seventy million, eight hundred sixty-six thousand, four hundred thirty-two".