70474272 has 72 divisors (see below), whose sum is σ = 203375088. Its totient is φ = 21352320.

The previous prime is 70474237. The next prime is 70474279. The reversal of 70474272 is 27247407.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (70474279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8583 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (2824654).

Almost surely, 2^70474272 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 70474272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101687544).

70474272 is an abundant number, since it is smaller than the sum of its proper divisors (132900816).

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

70474272 is a wasteful number, since it uses less digits than its factorization.

70474272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6102 (or 6083 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 70474272 is about 8394.8955919654. The cubic root of 70474272 is about 413.0572025508.

The spelling of 70474272 in words is "seventy million, four hundred seventy-four thousand, two hundred seventy-two".