72429436 has 12 divisors (see below), whose sum is σ = 127204560. Its totient is φ = 36085280.

The previous prime is 72429431. The next prime is 72429437. The reversal of 72429436 is 63492427.

It is a junction number, because it is equal to n+sod(n) for n = 72429395 and 72429404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72429431) 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, 31096 + ... + 33343.

It is an arithmetic number, because the mean of its divisors is an integer number (10600380).

Almost surely, 2^72429436 is an apocalyptic number.

It is an amenable number.

72429436 is a deficient number, since it is larger than the sum of its proper divisors (54775124).

72429436 is a wasteful number, since it uses less digits than its factorization.

72429436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64724 (or 64722 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 72429436 is about 8510.5485134626. The cubic root of 72429436 is about 416.8422209211.

The spelling of 72429436 in words is "seventy-two million, four hundred twenty-nine thousand, four hundred thirty-six".