72107274 has 32 divisors (see below), whose sum is σ = 148752576. Its totient is φ = 23287680.

The previous prime is 72107267. The next prime is 72107279. The reversal of 72107274 is 47270127.

It is a super-2 number, since 2×72107274² = 10398917927422152, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (72107279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37689 + ... + 39555.

It is an arithmetic number, because the mean of its divisors is an integer number (4648518).

Almost surely, 2^72107274 is an apocalyptic number.

72107274 is an abundant number, since it is smaller than the sum of its proper divisors (76645302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72107274 is a wasteful number, since it uses less digits than its factorization.

72107274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 72107274 is about 8491.6002025531. The cubic root of 72107274 is about 416.2232721884.

The spelling of 72107274 in words is "seventy-two million, one hundred seven thousand, two hundred seventy-four".