2945174640 has 40 divisors (see below), whose sum is σ = 9130042128. Its totient is φ = 785379840.

The previous prime is 2945174621. The next prime is 2945174669. The reversal of 2945174640 is 464715492.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2945174592 and 2945174601.

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 7 ways as a sum of consecutive naturals, for example, 6135541 + ... + 6136020.

Almost surely, 2^2945174640 is an apocalyptic number.

2945174640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2945174640 is an abundant number, since it is smaller than the sum of its proper divisors (6184867488).

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

2945174640 is a wasteful number, since it uses less digits than its factorization.

2945174640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12271577 (or 12271571 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2945174640 is about 54269.4632367043. The cubic root of 2945174640 is about 1433.4097386108.

The spelling of 2945174640 in words is "two billion, nine hundred forty-five million, one hundred seventy-four thousand, six hundred forty".