72402244 has 12 divisors (see below), whose sum is σ = 127071504. Its totient is φ = 36096104.

The previous prime is 72402233. The next prime is 72402247. The reversal of 72402244 is 44220427.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72402247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24694 + ... + 27469.

It is an arithmetic number, because the mean of its divisors is an integer number (10589292).

Almost surely, 2^72402244 is an apocalyptic number.

It is an amenable number.

72402244 is a deficient number, since it is larger than the sum of its proper divisors (54669260).

72402244 is a wasteful number, since it uses less digits than its factorization.

72402244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52514 (or 52512 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 72402244 is about 8508.9508166401. The cubic root of 72402244 is about 416.7900497181.

The spelling of 72402244 in words is "seventy-two million, four hundred two thousand, two hundred forty-four".