72273932 has 6 divisors (see below), whose sum is σ = 126479388. Its totient is φ = 36136964.

The previous prime is 72273931. The next prime is 72273937. The reversal of 72273932 is 23937227.

It is a junction number, because it is equal to n+sod(n) for n = 72273892 and 72273901.

It is not an unprimeable number, because it can be changed into a prime (72273931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9034238 + ... + 9034245.

It is an arithmetic number, because the mean of its divisors is an integer number (21079898).

Almost surely, 2^72273932 is an apocalyptic number.

It is an amenable number.

72273932 is a deficient number, since it is larger than the sum of its proper divisors (54205456).

72273932 is a wasteful number, since it uses less digits than its factorization.

72273932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18068487 (or 18068485 counting only the distinct ones).

The product of its digits is 31752, while the sum is 35.

The square root of 72273932 is about 8501.4076481486. The cubic root of 72273932 is about 416.5436909261.

The spelling of 72273932 in words is "seventy-two million, two hundred seventy-three thousand, nine hundred thirty-two".