20433799460 has 12 divisors (see below), whose sum is σ = 42910978908. Its totient is φ = 8173519776.

The previous prime is 20433799457. The next prime is 20433799469. The reversal of 20433799460 is 6499733402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9199495396 + 11234304064 = 95914^2 + 105992^2 .

It is not an unprimeable number, because it can be changed into a prime (20433799469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510844967 + ... + 510845006.

It is an arithmetic number, because the mean of its divisors is an integer number (3575914909).

Almost surely, 2^20433799460 is an apocalyptic number.

20433799460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433799460 is an abundant number, since it is smaller than the sum of its proper divisors (22477179448).

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

20433799460 is a wasteful number, since it uses less digits than its factorization.

20433799460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021689982 (or 1021689980 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 20433799460 in words is "twenty billion, four hundred thirty-three million, seven hundred ninety-nine thousand, four hundred sixty".