72467428 has 24 divisors (see below), whose sum is σ = 140301504. Its totient is φ = 32474400.

The previous prime is 72467419. The next prime is 72467441. The reversal of 72467428 is 82476427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8475 + ... + 14722.

It is an arithmetic number, because the mean of its divisors is an integer number (5845896).

Almost surely, 2^72467428 is an apocalyptic number.

It is an amenable number.

72467428 is a deficient number, since it is larger than the sum of its proper divisors (67834076).

72467428 is a wasteful number, since it uses less digits than its factorization.

72467428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23283 (or 23281 counting only the distinct ones).

The product of its digits is 150528, while the sum is 40.

The square root of 72467428 is about 8512.7802743874. The cubic root of 72467428 is about 416.9150913927.

The spelling of 72467428 in words is "seventy-two million, four hundred sixty-seven thousand, four hundred twenty-eight".