672219240 has 384 divisors, whose sum is σ = 2698790400. Its totient is φ = 132088320.

The previous prime is 672219181. The next prime is 672219263. The reversal of 672219240 is 42912276.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1228647 + ... + 1229193.

It is an arithmetic number, because the mean of its divisors is an integer number (7028100).

Almost surely, 2^672219240 is an apocalyptic number.

672219240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672219240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349395200).

672219240 is an abundant number, since it is smaller than the sum of its proper divisors (2026571160).

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

672219240 is a wasteful number, since it uses less digits than its factorization.

672219240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 672219240 is about 25927.1911320914. The cubic root of 672219240 is about 875.9990721618. Note that the first 3 decimals are identical.

It can be divided in two parts, 672 and 219240, that added together give a palindrome (219912).

The spelling of 672219240 in words is "six hundred seventy-two million, two hundred nineteen thousand, two hundred forty".