1801420122 has 24 divisors (see below), whose sum is σ = 3760526304. Its totient is φ = 574206864.

The previous prime is 1801420087. The next prime is 1801420133. The reversal of 1801420122 is 2210241081.

It is a super-2 number, since 2×1801420122² = 6490228911892989768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496788 + ... + 500400.

It is an arithmetic number, because the mean of its divisors is an integer number (156688596).

Almost surely, 2^1801420122 is an apocalyptic number.

1801420122 is an abundant number, since it is smaller than the sum of its proper divisors (1959106182).

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

1801420122 is an frugal number, since it uses more digits than its factorization.

1801420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254 (or 3641 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1801420122 is about 42443.1398697127. The cubic root of 1801420122 is about 1216.7602212750.

The spelling of 1801420122 in words is "one billion, eight hundred one million, four hundred twenty thousand, one hundred twenty-two".