7402087542 has 16 divisors (see below), whose sum is σ = 15314664240. Its totient is φ = 2382280992.

The previous prime is 7402087541. The next prime is 7402087579. The reversal of 7402087542 is 2457802047.

It is a self number, because there is not a number n which added to its sum of digits gives 7402087542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402087541) 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, 21270193 + ... + 21270540.

It is an arithmetic number, because the mean of its divisors is an integer number (957166515).

Almost surely, 2^7402087542 is an apocalyptic number.

7402087542 is an abundant number, since it is smaller than the sum of its proper divisors (7912576698).

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

7402087542 is a wasteful number, since it uses less digits than its factorization.

7402087542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42540767.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 7402087542 is about 86035.3854062385. The cubic root of 7402087542 is about 1948.8783856236.

Adding to 7402087542 its reverse (2457802047), we get a palindrome (9859889589).

The spelling of 7402087542 in words is "seven billion, four hundred two million, eighty-seven thousand, five hundred forty-two".