672155736 has 96 divisors (see below), whose sum is σ = 2022246000. Its totient is φ = 185412864.

The previous prime is 672155711. The next prime is 672155773. The reversal of 672155736 is 637551276.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24250 + ... + 43958.

Almost surely, 2^672155736 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 672155736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011123000).

672155736 is an abundant number, since it is smaller than the sum of its proper divisors (1350090264).

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

672155736 is a wasteful number, since it uses less digits than its factorization.

672155736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19761 (or 19750 counting only the distinct ones).

The product of its digits is 264600, while the sum is 42.

The square root of 672155736 is about 25925.9664429313. The cubic root of 672155736 is about 875.9714863220.

The spelling of 672155736 in words is "six hundred seventy-two million, one hundred fifty-five thousand, seven hundred thirty-six".