742440279 has 32 divisors (see below), whose sum is σ = 1160372224. Its totient is φ = 413411040.

The previous prime is 742440241. The next prime is 742440323. The reversal of 742440279 is 972044247.

742440279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742440279 - 2¹² = 742436183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742440239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569142 + ... + 570444.

It is an arithmetic number, because the mean of its divisors is an integer number (36261632).

Almost surely, 2^742440279 is an apocalyptic number.

742440279 is a deficient number, since it is larger than the sum of its proper divisors (417931945).

742440279 is a wasteful number, since it uses less digits than its factorization.

742440279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

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

The square root of 742440279 is about 27247.7573205576. The cubic root of 742440279 is about 905.4973321331.

The spelling of 742440279 in words is "seven hundred forty-two million, four hundred forty thousand, two hundred seventy-nine".