2635942 has 4 divisors (see below), whose sum is σ = 3953916. Its totient is φ = 1317970.

The previous prime is 2635939. The next prime is 2635949. The reversal of 2635942 is 2495362.

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 not an unprimeable number, because it can be changed into a prime (2635949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658984 + ... + 658987.

It is an arithmetic number, because the mean of its divisors is an integer number (988479).

2^2635942 is an apocalyptic number.

2635942 is a deficient number, since it is larger than the sum of its proper divisors (1317974).

2635942 is a wasteful number, since it uses less digits than its factorization.

2635942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317973.

The product of its digits is 12960, while the sum is 31.

The square root of 2635942 is about 1623.5584375069. The cubic root of 2635942 is about 138.1376138982.

The spelling of 2635942 in words is "two million, six hundred thirty-five thousand, nine hundred forty-two".