20024990340 has 48 divisors (see below), whose sum is σ = 59021027520. Its totient is φ = 5058944640.

The previous prime is 20024990339. The next prime is 20024990341. The reversal of 20024990340 is 4309942002.

It is an interprime number because it is at equal distance from previous prime (20024990339) and next prime (20024990341).

It is not an unprimeable number, because it can be changed into a prime (20024990341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8781751 + ... + 8784030.

It is an arithmetic number, because the mean of its divisors is an integer number (1229604740).

Almost surely, 2^20024990340 is an apocalyptic number.

20024990340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20024990340 is an abundant number, since it is smaller than the sum of its proper divisors (38996037180).

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

20024990340 is a wasteful number, since it uses less digits than its factorization.

20024990340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17565812 (or 17565810 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 20024990340 in words is "twenty billion, twenty-four million, nine hundred ninety thousand, three hundred forty".