7242940540 has 24 divisors (see below), whose sum is σ = 16592918832. Its totient is φ = 2633796480.

The previous prime is 7242940487. The next prime is 7242940561. The reversal of 7242940540 is 450492427.

It is a self number, because there is not a number n which added to its sum of digits gives 7242940540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16461009 + ... + 16461448.

It is an arithmetic number, because the mean of its divisors is an integer number (691371618).

Almost surely, 2^7242940540 is an apocalyptic number.

It is an amenable number.

7242940540 is an abundant number, since it is smaller than the sum of its proper divisors (9349978292).

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

7242940540 is a wasteful number, since it uses less digits than its factorization.

7242940540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32922477 (or 32922475 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 7242940540 is about 85105.4671569342. The cubic root of 7242940540 is about 1934.8099255326.

The spelling of 7242940540 in words is "seven billion, two hundred forty-two million, nine hundred forty thousand, five hundred forty".