72279376 has 40 divisors (see below), whose sum is σ = 159692904. Its totient is φ = 31395840.

The previous prime is 72279367. The next prime is 72279407. The reversal of 72279376 is 67397227.

It can be written as a sum of positive squares in 4 ways, for example, as 18696976 + 53582400 = 4324^2 + 7320^2 .

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, 6685 + ... + 13756.

Almost surely, 2^72279376 is an apocalyptic number.

It is an amenable number.

72279376 is an abundant number, since it is smaller than the sum of its proper divisors (87413528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72279376 is a wasteful number, since it uses less digits than its factorization.

72279376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20479 (or 20473 counting only the distinct ones).

The product of its digits is 222264, while the sum is 43.

The square root of 72279376 is about 8501.7278243896. The cubic root of 72279376 is about 416.5541493161.

The spelling of 72279376 in words is "seventy-two million, two hundred seventy-nine thousand, three hundred seventy-six".