72252470 has 16 divisors (see below), whose sum is σ = 133079760. Its totient is φ = 28228704.

The previous prime is 72252469. The next prime is 72252473. The reversal of 72252470 is 7425227.

It is a super-2 number, since 2×72252470² = 10440838842201800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72252473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83585 + ... + 84444.

It is an arithmetic number, because the mean of its divisors is an integer number (8317485).

Almost surely, 2^72252470 is an apocalyptic number.

72252470 is a deficient number, since it is larger than the sum of its proper divisors (60827290).

72252470 is a wasteful number, since it uses less digits than its factorization.

72252470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168079.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 72252470 is about 8500.1452928759. The cubic root of 72252470 is about 416.5024554695.

Adding to 72252470 its reverse (7425227), we get a palindrome (79677697).

The spelling of 72252470 in words is "seventy-two million, two hundred fifty-two thousand, four hundred seventy".