7042257402 has 16 divisors (see below), whose sum is σ = 14168855232. Its totient is φ = 2333362400.

The previous prime is 7042257389. The next prime is 7042257407. The reversal of 7042257402 is 2047522407.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7042257407) 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, 3513099 + ... + 3515102.

It is an arithmetic number, because the mean of its divisors is an integer number (885553452).

Almost surely, 2^7042257402 is an apocalyptic number.

7042257402 is an abundant number, since it is smaller than the sum of its proper divisors (7126597830).

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

7042257402 is a wasteful number, since it uses less digits than its factorization.

7042257402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7028373.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 7042257402 is about 83918.1589526367. The cubic root of 7042257402 is about 1916.7727724632.

Adding to 7042257402 its reverse (2047522407), we get a palindrome (9089779809).

The spelling of 7042257402 in words is "seven billion, forty-two million, two hundred fifty-seven thousand, four hundred two".