72293356 has 6 divisors (see below), whose sum is σ = 126513380. Its totient is φ = 36146676.

The previous prime is 72293339. The next prime is 72293359. The reversal of 72293356 is 65339227.

It is not an unprimeable number, because it can be changed into a prime (72293359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9036666 + ... + 9036673.

Almost surely, 2^72293356 is an apocalyptic number.

It is an amenable number.

72293356 is a deficient number, since it is larger than the sum of its proper divisors (54220024).

72293356 is a wasteful number, since it uses less digits than its factorization.

72293356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18073343 (or 18073341 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The square root of 72293356 is about 8502.5499704500. The cubic root of 72293356 is about 416.5810036874.

It can be divided in two parts, 7229 and 3356, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 72293356 in words is "seventy-two million, two hundred ninety-three thousand, three hundred fifty-six".