70542732 has 96 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 20240640.

The previous prime is 70542727. The next prime is 70542739. The reversal of 70542732 is 23724507.

It is a self number, because there is not a number n which added to its sum of digits gives 70542732.

It is not an unprimeable number, because it can be changed into a prime (70542739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139993 + ... + 140495.

It is an arithmetic number, because the mean of its divisors is an integer number (1975680).

Almost surely, 2^70542732 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 70542732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94832640).

70542732 is an abundant number, since it is smaller than the sum of its proper divisors (119122548).

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

70542732 is a wasteful number, since it uses less digits than its factorization.

70542732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 70542732 is about 8398.9720799631. The cubic root of 70542732 is about 413.1909097116.

The spelling of 70542732 in words is "seventy million, five hundred forty-two thousand, seven hundred thirty-two".