775630542 has 32 divisors (see below), whose sum is σ = 1644460704. Its totient is φ = 243046400.

The previous prime is 775630511. The next prime is 775630543. The reversal of 775630542 is 245036577.

It is a self number, because there is not a number n which added to its sum of digits gives 775630542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775630543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91942 + ... + 100022.

It is an arithmetic number, because the mean of its divisors is an integer number (51389397).

Almost surely, 2^775630542 is an apocalyptic number.

775630542 is an abundant number, since it is smaller than the sum of its proper divisors (868830162).

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

775630542 is a wasteful number, since it uses less digits than its factorization.

775630542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044.

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 775630542 is about 27850.1443802362. The cubic root of 775630542 is about 918.7943177474.

The spelling of 775630542 in words is "seven hundred seventy-five million, six hundred thirty thousand, five hundred forty-two".