2945402 has 4 divisors (see below), whose sum is σ = 4418106. Its totient is φ = 1472700.

The previous prime is 2945401. The next prime is 2945407. The reversal of 2945402 is 2045492.

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

It can be written as a sum of positive squares in only one way, i.e., 2686321 + 259081 = 1639^2 + 509^2 .

It is not an unprimeable number, because it can be changed into a prime (2945401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736349 + ... + 736352.

2^2945402 is an apocalyptic number.

2945402 is a deficient number, since it is larger than the sum of its proper divisors (1472704).

2945402 is a wasteful number, since it uses less digits than its factorization.

2945402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472703.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2945402 is about 1716.2173522022. The cubic root of 2945402 is about 143.3446622858.

The spelling of 2945402 in words is "two million, nine hundred forty-five thousand, four hundred two".