70303872 has 64 divisors (see below), whose sum is σ = 187810560. Its totient is φ = 23301120.

The previous prime is 70303843. The next prime is 70303897. The reversal of 70303872 is 27830307.

It is a tau number, because it is divible by the number of its divisors (64).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85222 + ... + 86042.

It is an arithmetic number, because the mean of its divisors is an integer number (2934540).

Almost surely, 2^70303872 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 70303872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93905280).

70303872 is an abundant number, since it is smaller than the sum of its proper divisors (117506688).

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

70303872 is a wasteful number, since it uses less digits than its factorization.

70303872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 70303872 is about 8384.7404253203. The cubic root of 70303872 is about 412.7240230341.

The spelling of 70303872 in words is "seventy million, three hundred three thousand, eight hundred seventy-two".