72266242 has 16 divisors (see below), whose sum is σ = 111533760. Its totient is φ = 35101872.

The previous prime is 72266221. The next prime is 72266263. The reversal of 72266242 is 24266227.

It is an interprime number because it is at equal distance from previous prime (72266221) and next prime (72266263).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7609 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (6970860).

Almost surely, 2^72266242 is an apocalyptic number.

72266242 is a deficient number, since it is larger than the sum of its proper divisors (39267518).

72266242 is a wasteful number, since it uses less digits than its factorization.

72266242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777.

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

The square root of 72266242 is about 8500.9553580759. The cubic root of 72266242 is about 416.5289168828.

The spelling of 72266242 in words is "seventy-two million, two hundred sixty-six thousand, two hundred forty-two".