7235506420 has 24 divisors (see below), whose sum is σ = 15221291400. Its totient is φ = 2889111552.

The previous prime is 7235506403. The next prime is 7235506427. The reversal of 7235506420 is 246055327.

It can be written as a sum of positive squares in 4 ways, for example, as 159668496 + 7075837924 = 12636^2 + 84118^2 .

It is a super-2 number, since 2×7235506420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7235506427) 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, 306525 + ... + 329284.

It is an arithmetic number, because the mean of its divisors is an integer number (634220475).

Almost surely, 2^7235506420 is an apocalyptic number.

It is an amenable number.

7235506420 is an abundant number, since it is smaller than the sum of its proper divisors (7985784980).

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

7235506420 is a wasteful number, since it uses less digits than its factorization.

7235506420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636387 (or 636385 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 7235506420 is about 85061.7800189956. The cubic root of 7235506420 is about 1934.1477389993.

The spelling of 7235506420 in words is "seven billion, two hundred thirty-five million, five hundred six thousand, four hundred twenty".