2903642 has 12 divisors (see below), whose sum is σ = 5066730. Its totient is φ = 1244376.

The previous prime is 2903639. The next prime is 2903657. The reversal of 2903642 is 2463092.

2903642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1901641 + 1002001 = 1379^2 + 1001^2 .

It is a super-2 number, since 2×2903642² = 16862273728328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14717 + ... + 14912.

2^2903642 is an apocalyptic number.

2903642 is a deficient number, since it is larger than the sum of its proper divisors (2163088).

2903642 is a wasteful number, since it uses less digits than its factorization.

2903642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29645 (or 29638 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2903642 is about 1704.0076290909. The cubic root of 2903642 is about 142.6639868578.

Subtracting from 2903642 its sum of digits (26), we obtain a square (2903616 = 1704²).

The spelling of 2903642 in words is "two million, nine hundred three thousand, six hundred forty-two".