1799153990 has 16 divisors (see below), whose sum is σ = 3246939648. Its totient is φ = 717781056.

The previous prime is 1799153969. The next prime is 1799154011. The reversal of 1799153990 is 993519971.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1799153969) and next prime (1799154011).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231047 + ... + 238706.

It is an arithmetic number, because the mean of its divisors is an integer number (202933728).

Almost surely, 2^1799153990 is an apocalyptic number.

1799153990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1799153990 is a deficient number, since it is larger than the sum of its proper divisors (1447785658).

1799153990 is a wasteful number, since it uses less digits than its factorization.

1799153990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470143.

The product of its (nonzero) digits is 688905, while the sum is 53.

The square root of 1799153990 is about 42416.4353759247. The cubic root of 1799153990 is about 1216.2497913341.

The spelling of 1799153990 in words is "one billion, seven hundred ninety-nine million, one hundred fifty-three thousand, nine hundred ninety".