742878224 has 40 divisors (see below), whose sum is σ = 1571798208. Its totient is φ = 337322880.

The previous prime is 742878211. The next prime is 742878233. The reversal of 742878224 is 422878247.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 253214 + ... + 256130.

Almost surely, 2^742878224 is an apocalyptic number.

It is an amenable number.

742878224 is an abundant number, since it is smaller than the sum of its proper divisors (828919984).

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

742878224 is a wasteful number, since it uses less digits than its factorization.

742878224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4377 counting only the distinct ones).

The product of its digits is 401408, while the sum is 44.

The square root of 742878224 is about 27255.7924852682. The cubic root of 742878224 is about 905.6753397534.

The spelling of 742878224 in words is "seven hundred forty-two million, eight hundred seventy-eight thousand, two hundred twenty-four".