761139834 has 72 divisors (see below), whose sum is σ = 1917635040. Its totient is φ = 200727072.

The previous prime is 761139823. The next prime is 761139859. The reversal of 761139834 is 438931167.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42027 + ... + 57345.

It is an arithmetic number, because the mean of its divisors is an integer number (26633820).

Almost surely, 2^761139834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 761139834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958817520).

761139834 is an abundant number, since it is smaller than the sum of its proper divisors (1156495206).

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

761139834 is a wasteful number, since it uses less digits than its factorization.

761139834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15364 (or 15344 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 761139834 is about 27588.7628211198. The cubic root of 761139834 is about 913.0365230098.

The spelling of 761139834 in words is "seven hundred sixty-one million, one hundred thirty-nine thousand, eight hundred thirty-four".