2656942 has 8 divisors (see below), whose sum is σ = 4016232. Its totient is φ = 1318200.

The previous prime is 2656921. The next prime is 2656949. The reversal of 2656942 is 2496562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2⁹ + 6⁵ + 5⁹ + 6⁶ + 9⁵ + 4⁸ + 2¹⁹ .

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2656898 and 2656907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4809 + ... + 5332.

It is an arithmetic number, because the mean of its divisors is an integer number (502029).

2^2656942 is an apocalyptic number.

2656942 is a deficient number, since it is larger than the sum of its proper divisors (1359290).

2656942 is a wasteful number, since it uses less digits than its factorization.

2656942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10274.

The product of its digits is 25920, while the sum is 34.

The square root of 2656942 is about 1630.0128833847. The cubic root of 2656942 is about 138.5034818641.

Adding to 2656942 its product of digits (25920), we get a palindrome (2682862).

The spelling of 2656942 in words is "two million, six hundred fifty-six thousand, nine hundred forty-two".