772542 has 24 divisors (see below), whose sum is σ = 1690416. Its totient is φ = 254976.

The previous prime is 772537. The next prime is 772567. The reversal of 772542 is 245277.

It is a super-2 number, since 2×772542² = 1193642283528, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 772542.

It is an unprimeable number.

772542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2878 + ... + 3134.

It is an arithmetic number, because the mean of its divisors is an integer number (70434).

2⁷⁷²⁵⁴² is an apocalyptic number.

772542 is an abundant number, since it is smaller than the sum of its proper divisors (917874).

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

772542 is a wasteful number, since it uses less digits than its factorization.

772542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 429 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 772542 is about 878.9436842028. The cubic root of 772542 is about 91.7573156538.

The spelling of 772542 in words is "seven hundred seventy-two thousand, five hundred forty-two".