28952040500 has 24 divisors (see below), whose sum is σ = 63231257544. Its totient is φ = 11580816000.

The previous prime is 28952040499. The next prime is 28952040503. The reversal of 28952040500 is 504025982.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61559716 + 28890480784 = 7846^2 + 169972^2 .

It is a super-2 number, since 2×28952040500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952040503) 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, 28951541 + ... + 28952540.

It is an arithmetic number, because the mean of its divisors is an integer number (2634635731).

Almost surely, 2^28952040500 is an apocalyptic number.

28952040500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28952040500 is an abundant number, since it is smaller than the sum of its proper divisors (34279217044).

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

28952040500 is a wasteful number, since it uses less digits than its factorization.

28952040500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57904100 (or 57904088 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 28952040500 in words is "twenty-eight billion, nine hundred fifty-two million, forty thousand, five hundred".