7042090 has 16 divisors (see below), whose sum is σ = 13828320. Its totient is φ = 2560720.

The previous prime is 7042081. The next prime is 7042093. The reversal of 7042090 is 902407.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (7042093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31900 + ... + 32119.

It is an arithmetic number, because the mean of its divisors is an integer number (864270).

Almost surely, 2^7042090 is an apocalyptic number.

7042090 is a deficient number, since it is larger than the sum of its proper divisors (6786230).

7042090 is a wasteful number, since it uses less digits than its factorization.

7042090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64037.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7042090 is about 2653.6936522515. The cubic root of 7042090 is about 191.6757584429.

Adding to 7042090 its reverse (902407), we get a palindrome (7944497).

The spelling of 7042090 in words is "seven million, forty-two thousand, ninety".