8440290774 has 16 divisors (see below), whose sum is σ = 18756201840. Its totient is φ = 2813430240.

The previous prime is 8440290773. The next prime is 8440290809. The reversal of 8440290774 is 4770920448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440290773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78150787 + ... + 78150894.

It is an arithmetic number, because the mean of its divisors is an integer number (1172262615).

Almost surely, 2^8440290774 is an apocalyptic number.

8440290774 is an abundant number, since it is smaller than the sum of its proper divisors (10315911066).

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

8440290774 is a wasteful number, since it uses less digits than its factorization.

8440290774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156301692 (or 156301686 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 8440290774 is about 91871.0551479627. The cubic root of 8440290774 is about 2036.0376418110.

The spelling of 8440290774 in words is "eight billion, four hundred forty million, two hundred ninety thousand, seven hundred seventy-four".