20413239994 has 32 divisors (see below), whose sum is σ = 35295321600. Its totient is φ = 8673557760.

The previous prime is 20413239907. The next prime is 20413240037. The reversal of 20413239994 is 49993231402.

It is a happy number.

It is a super-2 number, since 2×20413239994² (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 15 ways as a sum of consecutive naturals, for example, 752914 + ... + 779554.

It is an arithmetic number, because the mean of its divisors is an integer number (1102978800).

Almost surely, 2^20413239994 is an apocalyptic number.

20413239994 is a deficient number, since it is larger than the sum of its proper divisors (14882081606).

20413239994 is a wasteful number, since it uses less digits than its factorization.

20413239994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27118.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 20413239994 in words is "twenty billion, four hundred thirteen million, two hundred thirty-nine thousand, nine hundred ninety-four".