742825215 has 64 divisors (see below), whose sum is σ = 1474260480. Its totient is φ = 351751680.

The previous prime is 742825207. The next prime is 742825241. The reversal of 742825215 is 512528247.

It is a happy number.

It is not a de Polignac number, because 742825215 - 2³ = 742825207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742825215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58039 + ... + 69671.

It is an arithmetic number, because the mean of its divisors is an integer number (23035320).

Almost surely, 2^742825215 is an apocalyptic number.

742825215 is a deficient number, since it is larger than the sum of its proper divisors (731435265).

742825215 is a wasteful number, since it uses less digits than its factorization.

742825215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11701 (or 11695 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 742825215 is about 27254.8200324273. The cubic root of 742825215 is about 905.6537973774.

It can be divided in two parts, 74282 and 5215, that added together give a palindrome (79497).

The spelling of 742825215 in words is "seven hundred forty-two million, eight hundred twenty-five thousand, two hundred fifteen".