72440276 has 24 divisors (see below), whose sum is σ = 130272576. Its totient is φ = 35225280.

The previous prime is 72440243. The next prime is 72440299. The reversal of 72440276 is 67204427.

It is a congruent number.

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, 79415 + ... + 80321.

It is an arithmetic number, because the mean of its divisors is an integer number (5428024).

Almost surely, 2^72440276 is an apocalyptic number.

It is an amenable number.

72440276 is a deficient number, since it is larger than the sum of its proper divisors (57832300).

72440276 is a wasteful number, since it uses less digits than its factorization.

72440276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 72440276 is about 8511.1853463545. The cubic root of 72440276 is about 416.8630151567.

The spelling of 72440276 in words is "seventy-two million, four hundred forty thousand, two hundred seventy-six".