5406374640 has 80 divisors (see below), whose sum is σ = 16766882208. Its totient is φ = 1441087488.

The previous prime is 5406374587. The next prime is 5406374669. The reversal of 5406374640 is 464736045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999784 + ... + 1005176.

Almost surely, 2^5406374640 is an apocalyptic number.

It is an amenable number.

5406374640 is an abundant number, since it is smaller than the sum of its proper divisors (11360507568).

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

5406374640 is a wasteful number, since it uses less digits than its factorization.

5406374640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9586 (or 9580 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 5406374640 is about 73528.0534218063. The cubic root of 5406374640 is about 1755.1007255441.

The spelling of 5406374640 in words is "five billion, four hundred six million, three hundred seventy-four thousand, six hundred forty".