672238480 has 80 divisors (see below), whose sum is σ = 1726925184. Its totient is φ = 242063360.

The previous prime is 672238471. The next prime is 672238519. The reversal of 672238480 is 84832276.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20535 + ... + 42025.

Almost surely, 2^672238480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672238480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863462592).

672238480 is an abundant number, since it is smaller than the sum of its proper divisors (1054686704).

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

672238480 is a wasteful number, since it uses less digits than its factorization.

672238480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21544 (or 21538 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 672238480 is about 25927.5621684724. The cubic root of 672238480 is about 876.0074295847.

The spelling of 672238480 in words is "six hundred seventy-two million, two hundred thirty-eight thousand, four hundred eighty".