1890144351 has 12 divisors (see below), whose sum is σ = 2730585312. Its totient is φ = 1259922336.

The previous prime is 1890144343. The next prime is 1890144367. The reversal of 1890144351 is 1534410981.

It is not a de Polignac number, because 1890144351 - 2³ = 1890144343 is a prime.

It is a super-2 number, since 2×1890144351² = 7145291335234422402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890144391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122755 + ... + 137291.

It is an arithmetic number, because the mean of its divisors is an integer number (227548776).

Almost surely, 2^1890144351 is an apocalyptic number.

1890144351 is a deficient number, since it is larger than the sum of its proper divisors (840440961).

1890144351 is a wasteful number, since it uses less digits than its factorization.

1890144351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28990 (or 28987 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1890144351 is about 43475.7904010956. The cubic root of 1890144351 is about 1236.4170659483.

The spelling of 1890144351 in words is "one billion, eight hundred ninety million, one hundred forty-four thousand, three hundred fifty-one".