1890030120 has 64 divisors (see below), whose sum is σ = 6185557440. Its totient is φ = 458188800.

The previous prime is 1890030119. The next prime is 1890030133. The reversal of 1890030120 is 210300981.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714601 + ... + 717240.

It is an arithmetic number, because the mean of its divisors is an integer number (96649335).

Almost surely, 2^1890030120 is an apocalyptic number.

1890030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1890030120 is an abundant number, since it is smaller than the sum of its proper divisors (4295527320).

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

1890030120 is a wasteful number, since it uses less digits than its factorization.

1890030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431866 (or 1431862 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1890030120 is about 43474.4766500990. The cubic root of 1890030120 is about 1236.3921577973.

It can be divided in two parts, 1890030 and 120, that multiplied together give a square (226803600 = 15060²).

The spelling of 1890030120 in words is "one billion, eight hundred ninety million, thirty thousand, one hundred twenty".