10252470440 has 32 divisors (see below), whose sum is σ = 23081465160. Its totient is φ = 4098604800.

The previous prime is 10252470439. The next prime is 10252470463. The reversal of 10252470440 is 4407425201.

It can be written as a sum of positive squares in 4 ways, for example, as 5054925604 + 5197544836 = 71098^2 + 72094^2 .

It is a super-2 number, since 2×10252470440² (a number of 21 digits) contains 22 as substring.

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, 3971 + ... + 143250.

Almost surely, 2^10252470440 is an apocalyptic number.

10252470440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10252470440 is an abundant number, since it is smaller than the sum of its proper divisors (12828994720).

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

10252470440 is a wasteful number, since it uses less digits than its factorization.

10252470440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148973 (or 148969 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

Adding to 10252470440 its reverse (4407425201), we get a palindrome (14659895641).

The spelling of 10252470440 in words is "ten billion, two hundred fifty-two million, four hundred seventy thousand, four hundred forty".