7340021525 has 36 divisors (see below), whose sum is σ = 9420029892. Its totient is φ = 5672862720.

The previous prime is 7340021503. The next prime is 7340021527. The reversal of 7340021525 is 5251200437.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1521078001 + 5818943524 = 39001^2 + 76282^2 .

It is not a de Polignac number, because 7340021525 - 2¹⁸ = 7339759381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7340021527) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4483007 + ... + 4484643.

It is an arithmetic number, because the mean of its divisors is an integer number (261667497).

Almost surely, 2^7340021525 is an apocalyptic number.

It is an amenable number.

7340021525 is a deficient number, since it is larger than the sum of its proper divisors (2080008367).

7340021525 is a wasteful number, since it uses less digits than its factorization.

7340021525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 7340021525 is about 85673.9255841589. The cubic root of 7340021525 is about 1943.4160175130.

The spelling of 7340021525 in words is "seven billion, three hundred forty million, twenty-one thousand, five hundred twenty-five".