72285754 has 4 divisors (see below), whose sum is σ = 108428634. Its totient is φ = 36142876.

The previous prime is 72285713. The next prime is 72285767. The reversal of 72285754 is 45758227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63123025 + 9162729 = 7945^2 + 3027^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18071437 + ... + 18071440.

Almost surely, 2^72285754 is an apocalyptic number.

72285754 is a deficient number, since it is larger than the sum of its proper divisors (36142880).

72285754 is a wasteful number, since it uses less digits than its factorization.

72285754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36142879.

The product of its digits is 156800, while the sum is 40.

The square root of 72285754 is about 8502.1029163378. The cubic root of 72285754 is about 416.5664013322.

The spelling of 72285754 in words is "seventy-two million, two hundred eighty-five thousand, seven hundred fifty-four".