538622540 has 24 divisors (see below), whose sum is σ = 1131571392. Its totient is φ = 215360640.

The previous prime is 538622537. The next prime is 538622549. The reversal of 538622540 is 45226835.

It is a super-2 number, since 2×538622540² = 580228481192103200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 538622540.

It is not an unprimeable number, because it can be changed into a prime (538622549) 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, 68912 + ... + 76328.

It is an arithmetic number, because the mean of its divisors is an integer number (47148808).

Almost surely, 2^538622540 is an apocalyptic number.

It is an amenable number.

538622540 is an abundant number, since it is smaller than the sum of its proper divisors (592948852).

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

538622540 is a wasteful number, since it uses less digits than its factorization.

538622540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11057 (or 11055 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 538622540 is about 23208.2429321998. The cubic root of 538622540 is about 813.6322876791.

The spelling of 538622540 in words is "five hundred thirty-eight million, six hundred twenty-two thousand, five hundred forty".