7042256 has 20 divisors (see below), whose sum is σ = 14694372. Its totient is φ = 3250176.

The previous prime is 7042253. The next prime is 7042271. The reversal of 7042256 is 6522407.

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 2202256 = 2200^2 + 1484^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042253) 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, 16721 + ... + 17136.

Almost surely, 2^7042256 is an apocalyptic number.

It is an amenable number.

7042256 is an abundant number, since it is smaller than the sum of its proper divisors (7652116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7042256 is a wasteful number, since it uses less digits than its factorization.

7042256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33878 (or 33872 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 7042256 is about 2653.7249292268. The cubic root of 7042256 is about 191.6772645264.

The spelling of 7042256 in words is "seven million, forty-two thousand, two hundred fifty-six".