72242626 has 8 divisors (see below), whose sum is σ = 108717840. Its totient is φ = 36003348.

The previous prime is 72242561. The next prime is 72242627. The reversal of 72242626 is 62624227.

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

It is a super-2 number, since 2×72242626² = 10437994022751752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72242627) 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, 58216 + ... + 59443.

It is an arithmetic number, because the mean of its divisors is an integer number (13589730).

Almost surely, 2^72242626 is an apocalyptic number.

72242626 is a deficient number, since it is larger than the sum of its proper divisors (36475214).

72242626 is a wasteful number, since it uses less digits than its factorization.

72242626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117968.

The product of its digits is 16128, while the sum is 31.

The square root of 72242626 is about 8499.5662242258. The cubic root of 72242626 is about 416.4835392240.

The spelling of 72242626 in words is "seventy-two million, two hundred forty-two thousand, six hundred twenty-six".