742781172 has 24 divisors (see below), whose sum is σ = 1980750016. Its totient is φ = 212223168.

The previous prime is 742781161. The next prime is 742781189. The reversal of 742781172 is 271187247.

742781172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 742781172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4421233 + ... + 4421400.

Almost surely, 2^742781172 is an apocalyptic number.

It is an amenable number.

742781172 is an abundant number, since it is smaller than the sum of its proper divisors (1237968844).

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

742781172 is a wasteful number, since it uses less digits than its factorization.

742781172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842647 (or 8842645 counting only the distinct ones).

The product of its digits is 43904, while the sum is 39.

The square root of 742781172 is about 27254.0120349280. The cubic root of 742781172 is about 905.6358979228.

The spelling of 742781172 in words is "seven hundred forty-two million, seven hundred eighty-one thousand, one hundred seventy-two".