763742290 has 16 divisors (see below), whose sum is σ = 1387350360. Its totient is φ = 302693760.

The previous prime is 763742281. The next prime is 763742303. The reversal of 763742290 is 92247367.

It can be written as a sum of positive squares in 4 ways, for example, as 555026481 + 208715809 = 23559^2 + 14447^2 .

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 349251 + ... + 351430.

Almost surely, 2^763742290 is an apocalyptic number.

763742290 is a deficient number, since it is larger than the sum of its proper divisors (623608070).

763742290 is a wasteful number, since it uses less digits than its factorization.

763742290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700797.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 763742290 is about 27635.8877186893. The cubic root of 763742290 is about 914.0759440972.

The spelling of 763742290 in words is "seven hundred sixty-three million, seven hundred forty-two thousand, two hundred ninety".