70740432 has 160 divisors (see below), whose sum is σ = 235104000. Its totient is φ = 19948032.

The previous prime is 70740413. The next prime is 70740437. The reversal of 70740432 is 23404707.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 70740396 and 70740405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70740437) 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 31 ways as a sum of consecutive naturals, for example, 450498 + ... + 450654.

It is an arithmetic number, because the mean of its divisors is an integer number (1469400).

Almost surely, 2^70740432 is an apocalyptic number.

70740432 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 70740432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117552000).

70740432 is an abundant number, since it is smaller than the sum of its proper divisors (164363568).

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

70740432 is a wasteful number, since it uses less digits than its factorization.

70740432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 70740432 is about 8410.7331428360. The cubic root of 70740432 is about 413.5765466512.

The spelling of 70740432 in words is "seventy million, seven hundred forty thousand, four hundred thirty-two".