767742434 has 4 divisors (see below), whose sum is σ = 1151613654. Its totient is φ = 383871216.

The previous prime is 767742431. The next prime is 767742439. The reversal of 767742434 is 434247767.

767742434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434247767 = 3527 ⋅123121.

It can be written as a sum of positive squares in only one way, i.e., 767456209 + 286225 = 27703^2 + 535^2 .

It is not an unprimeable number, because it can be changed into a prime (767742431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191935607 + ... + 191935610.

Almost surely, 2^767742434 is an apocalyptic number.

767742434 is a deficient number, since it is larger than the sum of its proper divisors (383871220).

767742434 is a wasteful number, since it uses less digits than its factorization.

767742434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383871219.

The product of its digits is 790272, while the sum is 44.

The square root of 767742434 is about 27708.1654751808. The cubic root of 767742434 is about 915.6690077805.

It can be divided in two parts, 767 and 742434, that multiplied together give a triangular number (569446878 = T₃₃₇₄₇).

The spelling of 767742434 in words is "seven hundred sixty-seven million, seven hundred forty-two thousand, four hundred thirty-four".