764143674 has 96 divisors (see below), whose sum is σ = 1845763584. Its totient is φ = 206569440.

The previous prime is 764143673. The next prime is 764143703. The reversal of 764143674 is 476341467.

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

Its product of digits (338688) is a multiple of the sum of its prime factors (432).

It is not an unprimeable number, because it can be changed into a prime (764143673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3621429 + ... + 3621639.

It is an arithmetic number, because the mean of its divisors is an integer number (19226704).

Almost surely, 2^764143674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764143674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922881792).

764143674 is an abundant number, since it is smaller than the sum of its proper divisors (1081619910).

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

764143674 is a wasteful number, since it uses less digits than its factorization.

764143674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 409 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 764143674 is about 27643.1487714406. The cubic root of 764143674 is about 914.2360466206.

It can be divided in two parts, 7641 and 43674, that added together give a palindrome (51315).

The spelling of 764143674 in words is "seven hundred sixty-four million, one hundred forty-three thousand, six hundred seventy-four".