20035214440 has 64 divisors (see below), whose sum is σ = 48556661760. Its totient is φ = 7418357760.

The previous prime is 20035214431. The next prime is 20035214461. The reversal of 20035214440 is 4441253002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322729 + ... + 379768.

It is an arithmetic number, because the mean of its divisors is an integer number (758697840).

Almost surely, 2^20035214440 is an apocalyptic number.

20035214440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20035214440 is an abundant number, since it is smaller than the sum of its proper divisors (28521447320).

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

20035214440 is a wasteful number, since it uses less digits than its factorization.

20035214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702562 (or 702558 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20035214440 its reverse (4441253002), we get a palindrome (24476467442).

The spelling of 20035214440 in words is "twenty billion, thirty-five million, two hundred fourteen thousand, four hundred forty".