6434927940 has 72 divisors (see below), whose sum is σ = 20959489152. Its totient is φ = 1470840000.

The previous prime is 6434927921. The next prime is 6434927959. The reversal of 6434927940 is 497294346.

It is an interprime number because it is at equal distance from previous prime (6434927921) and next prime (6434927959).

It is a super-3 number, since 3×6434927940³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6434927940.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1091436 + ... + 1097315.

It is an arithmetic number, because the mean of its divisors is an integer number (291104016).

Almost surely, 2^6434927940 is an apocalyptic number.

6434927940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6434927940 is an abundant number, since it is smaller than the sum of its proper divisors (14524561212).

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

6434927940 is a wasteful number, since it uses less digits than its factorization.

6434927940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188777 (or 2188768 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The square root of 6434927940 is about 80218.0025929342. The cubic root of 6434927940 is about 1860.0069314113.

The spelling of 6434927940 in words is "six billion, four hundred thirty-four million, nine hundred twenty-seven thousand, nine hundred forty".