72001376 has 12 divisors (see below), whose sum is σ = 141752772. Its totient is φ = 36000672.

The previous prime is 72001373. The next prime is 72001381. The reversal of 72001376 is 67310027.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72001373) 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, 1124990 + ... + 1125053.

It is an arithmetic number, because the mean of its divisors is an integer number (11812731).

Almost surely, 2^72001376 is an apocalyptic number.

It is an amenable number.

72001376 is a deficient number, since it is larger than the sum of its proper divisors (69751396).

72001376 is a wasteful number, since it uses less digits than its factorization.

72001376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250053 (or 2250045 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 72001376 is about 8485.3624554288. The cubic root of 72001376 is about 416.0194147744.

The spelling of 72001376 in words is "seventy-two million, one thousand, three hundred seventy-six".