70662272 has 24 divisors (see below), whose sum is σ = 140962215. Its totient is φ = 35283584.

The previous prime is 70662259. The next prime is 70662283. The reversal of 70662272 is 27226607.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 35331136 + 35331136 = 5944^2 + 5944^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5944.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 94733 + ... + 95475.

Almost surely, 2^70662272 is an apocalyptic number.

It is an amenable number.

70662272 is a deficient number, since it is larger than the sum of its proper divisors (70299943).

70662272 is an frugal number, since it uses more digits than its factorization.

70662272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 70662272 is about 8406.0854147457. The cubic root of 70662272 is about 413.4241724268.

Multiplying 70662272 by its sum of digits (32), we get a square (2261192704 = 47552²).

70662272 divided by its sum of digits (32) gives a square (2208196 = 1486²).

Multiplying 70662272 by its product of nonzero digits (14112), we get a square (997185982464 = 998592²).

Adding to 70662272 its reverse (27226607), we get a palindrome (97888879).

The spelling of 70662272 in words is "seventy million, six hundred sixty-two thousand, two hundred seventy-two".