771342242 has 16 divisors (see below), whose sum is σ = 1273996512. Its totient is φ = 347332320.

The previous prime is 771342199. The next prime is 771342251. The reversal of 771342242 is 242243177.

It is a junction number, because it is equal to n+sod(n) for n = 771342199 and 771342208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161483 + ... + 166190.

It is an arithmetic number, because the mean of its divisors is an integer number (79624782).

Almost surely, 2^771342242 is an apocalyptic number.

771342242 is a deficient number, since it is larger than the sum of its proper divisors (502654270).

771342242 is a wasteful number, since it uses less digits than its factorization.

771342242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327793.

The product of its digits is 18816, while the sum is 32.

The square root of 771342242 is about 27773.0488423579. The cubic root of 771342242 is about 917.0979132899.

The spelling of 771342242 in words is "seven hundred seventy-one million, three hundred forty-two thousand, two hundred forty-two".