742224879 has 72 divisors (see below), whose sum is σ = 1270210032. Its totient is φ = 412738560.

The previous prime is 742224877. The next prime is 742224887. The reversal of 742224879 is 978422247.

It is not a de Polignac number, because 742224879 - 2¹ = 742224877 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742224871) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4727469 + ... + 4727625.

It is an arithmetic number, because the mean of its divisors is an integer number (17641806).

Almost surely, 2^742224879 is an apocalyptic number.

742224879 is a deficient number, since it is larger than the sum of its proper divisors (527985153).

742224879 is a wasteful number, since it uses less digits than its factorization.

742224879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 241 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 742224879 is about 27243.8044149491. The cubic root of 742224879 is about 905.4097547228.

The spelling of 742224879 in words is "seven hundred forty-two million, two hundred twenty-four thousand, eight hundred seventy-nine".