20057040830 has 32 divisors (see below), whose sum is σ = 37129951584. Its totient is φ = 7796428416.

The previous prime is 20057040823. The next prime is 20057040859. The reversal of 20057040830 is 3804075002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20057040793 and 20057040802.

It is a congruent 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, 33677 + ... + 203096.

It is an arithmetic number, because the mean of its divisors is an integer number (1160310987).

Almost surely, 2^20057040830 is an apocalyptic number.

20057040830 is a deficient number, since it is larger than the sum of its proper divisors (17072910754).

20057040830 is a wasteful number, since it uses less digits than its factorization.

20057040830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237020.

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 20057040830 in words is "twenty billion, fifty-seven million, forty thousand, eight hundred thirty".