22533004240 has 40 divisors (see below), whose sum is σ = 52722953640. Its totient is φ = 8955787776.

The previous prime is 22533004237. The next prime is 22533004253. The reversal of 22533004240 is 4240033522.

It can be written as a sum of positive squares in 4 ways, for example, as 22202944 + 22510801296 = 4712^2 + 150036^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884455 + ... + 909574.

It is an arithmetic number, because the mean of its divisors is an integer number (1318073841).

Almost surely, 2^22533004240 is an apocalyptic number.

22533004240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22533004240 is an abundant number, since it is smaller than the sum of its proper divisors (30189949400).

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

22533004240 is a wasteful number, since it uses less digits than its factorization.

22533004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794199 (or 1794193 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 22533004240 its reverse (4240033522), we get a palindrome (26773037762).

The spelling of 22533004240 in words is "twenty-two billion, five hundred thirty-three million, four thousand, two hundred forty".