1799242020 has 72 divisors (see below), whose sum is σ = 5500744704. Its totient is φ = 476013888.

The previous prime is 1799242019. The next prime is 1799242021. The reversal of 1799242020 is 202429971.

It is an interprime number because it is at equal distance from previous prime (1799242019) and next prime (1799242021).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1799242021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16494 + ... + 62213.

It is an arithmetic number, because the mean of its divisors is an integer number (76399232).

Almost surely, 2^1799242020 is an apocalyptic number.

1799242020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1799242020 is an abundant number, since it is smaller than the sum of its proper divisors (3701502684).

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

1799242020 is a wasteful number, since it uses less digits than its factorization.

1799242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78849 (or 78844 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1799242020 is about 42417.4730506191. The cubic root of 1799242020 is about 1216.2696274578.

The spelling of 1799242020 in words is "one billion, seven hundred ninety-nine million, two hundred forty-two thousand, twenty".