672235380 has 72 divisors (see below), whose sum is σ = 2073708000. Its totient is φ = 176221632.

The previous prime is 672235367. The next prime is 672235381. The reversal of 672235380 is 83532276.

672235380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×672235380² = 903800812247488800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672235381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21030 + ... + 42269.

It is an arithmetic number, because the mean of its divisors is an integer number (28801500).

Almost surely, 2^672235380 is an apocalyptic number.

672235380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672235380 is an abundant number, since it is smaller than the sum of its proper divisors (1401472620).

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

672235380 is a wasteful number, since it uses less digits than its factorization.

672235380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63373 (or 63368 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 672235380 is about 25927.5023864621. The cubic root of 672235380 is about 876.0060830253.

The spelling of 672235380 in words is "six hundred seventy-two million, two hundred thirty-five thousand, three hundred eighty".