2945902 has 4 divisors (see below), whose sum is σ = 4418856. Its totient is φ = 1472950.

The previous prime is 2945869. The next prime is 2945933. The reversal of 2945902 is 2095492.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736474 + ... + 736477.

It is an arithmetic number, because the mean of its divisors is an integer number (1104714).

2^2945902 is an apocalyptic number.

2945902 is a deficient number, since it is larger than the sum of its proper divisors (1472954).

2945902 is a wasteful number, since it uses less digits than its factorization.

2945902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472953.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2945902 is about 1716.3630152156. The cubic root of 2945902 is about 143.3527730379.

The spelling of 2945902 in words is "two million, nine hundred forty-five thousand, nine hundred two".