770512042 has 4 divisors (see below), whose sum is σ = 1155768066. Its totient is φ = 385256020.

The previous prime is 770512003. The next prime is 770512051. The reversal of 770512042 is 240215077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 418161601 + 352350441 = 20449^2 + 18771^2 .

It is a super-3 number, since 3×770512042³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 770512042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192628009 + ... + 192628012.

Almost surely, 2^770512042 is an apocalyptic number.

770512042 is a deficient number, since it is larger than the sum of its proper divisors (385256024).

770512042 is a wasteful number, since it uses less digits than its factorization.

770512042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385256023.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 770512042 is about 27758.0986740807. The cubic root of 770512042 is about 916.7687692917.

The spelling of 770512042 in words is "seven hundred seventy million, five hundred twelve thousand, forty-two".