672308742 has 32 divisors (see below), whose sum is σ = 1538429184. Its totient is φ = 191872800.

The previous prime is 672308737. The next prime is 672308743. The reversal of 672308742 is 247803276.

It is a self number, because there is not a number n which added to its sum of digits gives 672308742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672308743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31017 + ... + 48027.

It is an arithmetic number, because the mean of its divisors is an integer number (48075912).

Almost surely, 2^672308742 is an apocalyptic number.

672308742 is an abundant number, since it is smaller than the sum of its proper divisors (866120442).

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

672308742 is a wasteful number, since it uses less digits than its factorization.

672308742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17964.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 672308742 is about 25928.9171004113. The cubic root of 672308742 is about 876.0379484613.

The spelling of 672308742 in words is "six hundred seventy-two million, three hundred eight thousand, seven hundred forty-two".