672423534 has 72 divisors (see below), whose sum is σ = 1519189776. Its totient is φ = 214905600.

The previous prime is 672423527. The next prime is 672423539. The reversal of 672423534 is 435324276.

672423534 is a `hidden beast` number, since 67 + 242 + 353 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672423539) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2148162 + ... + 2148474.

It is an arithmetic number, because the mean of its divisors is an integer number (21099858).

Almost surely, 2^672423534 is an apocalyptic number.

672423534 is an abundant number, since it is smaller than the sum of its proper divisors (846766242).

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

672423534 is a wasteful number, since it uses less digits than its factorization.

672423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 430 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 672423534 is about 25931.1305962544. The cubic root of 672423534 is about 876.0878047347.

The spelling of 672423534 in words is "six hundred seventy-two million, four hundred twenty-three thousand, five hundred thirty-four".