2945509402 has 16 divisors (see below), whose sum is σ = 4820788224. Its totient is φ = 1338628000.

The previous prime is 2945509321. The next prime is 2945509433. The reversal of 2945509402 is 2049055492.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186702 + ... + 201862.

It is an arithmetic number, because the mean of its divisors is an integer number (301299264).

Almost surely, 2^2945509402 is an apocalyptic number.

2945509402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2945509402 is a deficient number, since it is larger than the sum of its proper divisors (1875278822).

2945509402 is a wasteful number, since it uses less digits than its factorization.

2945509402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24005.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2945509402 is about 54272.5474065849. The cubic root of 2945509402 is about 1433.4640458523.

The spelling of 2945509402 in words is "two billion, nine hundred forty-five million, five hundred nine thousand, four hundred two".