72114448 has 20 divisors (see below), whose sum is σ = 159682240. Its totient is φ = 30906144.

The previous prime is 72114433. The next prime is 72114479. The reversal of 72114448 is 84441127.

It is a happy number.

It is a super-2 number, since 2×72114448² = 10400987220689408, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321828 + ... + 322051.

It is an arithmetic number, because the mean of its divisors is an integer number (7984112).

Almost surely, 2^72114448 is an apocalyptic number.

It is an amenable number.

72114448 is an abundant number, since it is smaller than the sum of its proper divisors (87567792).

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

72114448 is a wasteful number, since it uses less digits than its factorization.

72114448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643894 (or 643888 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 72114448 is about 8492.0226094847. The cubic root of 72114448 is about 416.2370751728.

The spelling of 72114448 in words is "seventy-two million, one hundred fourteen thousand, four hundred forty-eight".