72106074 has 12 divisors (see below), whose sum is σ = 156229866. Its totient is φ = 24035352.

The previous prime is 72106049. The next prime is 72106079. The reversal of 72106074 is 47060127.

It can be written as a sum of positive squares in only one way, i.e., 71520849 + 585225 = 8457^2 + 765^2 .

It is not an unprimeable number, because it can be changed into a prime (72106079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2002929 + ... + 2002964.

Almost surely, 2^72106074 is an apocalyptic number.

72106074 is an abundant number, since it is smaller than the sum of its proper divisors (84123792).

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

72106074 is a wasteful number, since it uses less digits than its factorization.

72106074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005901 (or 4005898 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 72106074 is about 8491.5295441987. The cubic root of 72106074 is about 416.2209632641.

The spelling of 72106074 in words is "seventy-two million, one hundred six thousand, seventy-four".