72269442 has 32 divisors (see below), whose sum is σ = 183542400. Its totient is φ = 20648304.

The previous prime is 72269441. The next prime is 72269447. The reversal of 72269442 is 24496227.

It is a junction number, because it is equal to n+sod(n) for n = 72269397 and 72269406.

It is not an unprimeable number, because it can be changed into a prime (72269441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95217 + ... + 95972.

It is an arithmetic number, because the mean of its divisors is an integer number (5735700).

Almost surely, 2^72269442 is an apocalyptic number.

72269442 is an abundant number, since it is smaller than the sum of its proper divisors (111272958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72269442 is a wasteful number, since it uses less digits than its factorization.

72269442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191207 (or 191201 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 72269442 is about 8501.1435701322. The cubic root of 72269442 is about 416.5350648565.

The spelling of 72269442 in words is "seventy-two million, two hundred sixty-nine thousand, four hundred forty-two".