72074970 has 96 divisors (see below), whose sum is σ = 208915200. Its totient is φ = 17089920.

The previous prime is 72074963. The next prime is 72074983. The reversal of 72074970 is 7947027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45756 + ... + 47304.

It is an arithmetic number, because the mean of its divisors is an integer number (2176200).

Almost surely, 2^72074970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72074970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104457600).

72074970 is an abundant number, since it is smaller than the sum of its proper divisors (136840230).

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

72074970 is a wasteful number, since it uses less digits than its factorization.

72074970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 72074970 is about 8489.6978744829. The cubic root of 72074970 is about 416.1611070085.

The spelling of 72074970 in words is "seventy-two million, seventy-four thousand, nine hundred seventy".