769444740 has 144 divisors (see below), whose sum is σ = 2383460352. Its totient is φ = 200890368.

The previous prime is 769444693. The next prime is 769444751. The reversal of 769444740 is 47444967.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2217247 + ... + 2217593.

It is an arithmetic number, because the mean of its divisors is an integer number (16551808).

Almost surely, 2^769444740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769444740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191730176).

769444740 is an abundant number, since it is smaller than the sum of its proper divisors (1614015612).

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

769444740 is a wasteful number, since it uses less digits than its factorization.

769444740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 769444740 is about 27738.8669559519. The cubic root of 769444740 is about 916.3452754666.

The spelling of 769444740 in words is "seven hundred sixty-nine million, four hundred forty-four thousand, seven hundred forty".