7240420536 has 32 divisors (see below), whose sum is σ = 18111517440. Its totient is φ = 2412078048.

The previous prime is 7240420531. The next prime is 7240420541. The reversal of 7240420536 is 6350240427.

It is an interprime number because it is at equal distance from previous prime (7240420531) and next prime (7240420541).

It is a junction number, because it is equal to n+sod(n) for n = 7240420497 and 7240420506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240420531) 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, 44416 + ... + 128271.

It is an arithmetic number, because the mean of its divisors is an integer number (565984920).

Almost surely, 2^7240420536 is an apocalyptic number.

It is an amenable number.

7240420536 is an abundant number, since it is smaller than the sum of its proper divisors (10871096904).

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

7240420536 is a wasteful number, since it uses less digits than its factorization.

7240420536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174443 (or 174439 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 7240420536 is about 85090.6606861176. The cubic root of 7240420536 is about 1934.5855095744.

The spelling of 7240420536 in words is "seven billion, two hundred forty million, four hundred twenty thousand, five hundred thirty-six".