2920201820 has 48 divisors (see below), whose sum is σ = 6236630400. Its totient is φ = 1148359680.

The previous prime is 2920201799. The next prime is 2920201841. The reversal of 2920201820 is 281020292.

It is an interprime number because it is at equal distance from previous prime (2920201799) and next prime (2920201841).

It is a self number, because there is not a number n which added to its sum of digits gives 2920201820.

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, 376946 + ... + 384614.

It is an arithmetic number, because the mean of its divisors is an integer number (129929800).

Almost surely, 2^2920201820 is an apocalyptic number.

2920201820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2920201820 is an abundant number, since it is smaller than the sum of its proper divisors (3316428580).

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

2920201820 is a wasteful number, since it uses less digits than its factorization.

2920201820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998 (or 7996 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2920201820 is about 54038.8917354899. The cubic root of 2920201820 is about 1429.3468286997.

The spelling of 2920201820 in words is "two billion, nine hundred twenty million, two hundred one thousand, eight hundred twenty".