2653942 has 4 divisors (see below), whose sum is σ = 3980916. Its totient is φ = 1326970.

The previous prime is 2653913. The next prime is 2653951. The reversal of 2653942 is 2493562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2493562 = 2 ⋅1246781.

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, 663484 + ... + 663487.

It is an arithmetic number, because the mean of its divisors is an integer number (995229).

2^2653942 is an apocalyptic number.

2653942 is a deficient number, since it is larger than the sum of its proper divisors (1326974).

2653942 is a wasteful number, since it uses less digits than its factorization.

2653942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326973.

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

The square root of 2653942 is about 1629.0923853484. The cubic root of 2653942 is about 138.4513333251.

The spelling of 2653942 in words is "two million, six hundred fifty-three thousand, nine hundred forty-two".