72401276 has 6 divisors (see below), whose sum is σ = 126702240. Its totient is φ = 36200636.

The previous prime is 72401261. The next prime is 72401279. The reversal of 72401276 is 67210427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72401279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9050156 + ... + 9050163.

It is an arithmetic number, because the mean of its divisors is an integer number (21117040).

Almost surely, 2^72401276 is an apocalyptic number.

It is an amenable number.

72401276 is a deficient number, since it is larger than the sum of its proper divisors (54300964).

72401276 is a wasteful number, since it uses less digits than its factorization.

72401276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18100323 (or 18100321 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72401276 is about 8508.8939351716. The cubic root of 72401276 is about 416.7881922500.

The spelling of 72401276 in words is "seventy-two million, four hundred one thousand, two hundred seventy-six".