72626530 has 8 divisors (see below), whose sum is σ = 130727772. Its totient is φ = 29050608.

The previous prime is 72626513. The next prime is 72626537. The reversal of 72626530 is 3562627.

It can be written as a sum of positive squares in 2 ways, for example, as 66928761 + 5697769 = 8181^2 + 2387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72626530² = 10549225719681800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72626492 and 72626501.

It is not an unprimeable number, because it can be changed into a prime (72626537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631317 + ... + 3631336.

Almost surely, 2^72626530 is an apocalyptic number.

72626530 is a deficient number, since it is larger than the sum of its proper divisors (58101242).

72626530 is a wasteful number, since it uses less digits than its factorization.

72626530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262660.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 72626530 is about 8522.1200413981. The cubic root of 72626530 is about 417.2199802782.

The spelling of 72626530 in words is "seventy-two million, six hundred twenty-six thousand, five hundred thirty".