72251038 has 4 divisors (see below), whose sum is σ = 108376560. Its totient is φ = 36125518.

The previous prime is 72251017. The next prime is 72251041. The reversal of 72251038 is 83015227.

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

It is a junction number, because it is equal to n+sod(n) for n = 72250997 and 72251015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18062758 + ... + 18062761.

It is an arithmetic number, because the mean of its divisors is an integer number (27094140).

Almost surely, 2^72251038 is an apocalyptic number.

72251038 is a deficient number, since it is larger than the sum of its proper divisors (36125522).

72251038 is a wasteful number, since it uses less digits than its factorization.

72251038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36125521.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 72251038 is about 8500.0610586042. The cubic root of 72251038 is about 416.4997038429.

The spelling of 72251038 in words is "seventy-two million, two hundred fifty-one thousand, thirty-eight".