1799159040 has 720 divisors, whose sum is σ = 7669022592. Its totient is φ = 394149888.

The previous prime is 1799159029. The next prime is 1799159053. The reversal of 1799159040 is 409519971.

1799159040 is a `hidden beast` number, since 17 + 9 + 9 + 1 + 590 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26853087 + ... + 26853153.

Almost surely, 2^1799159040 is an apocalyptic number.

1799159040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1799159040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3834511296).

1799159040 is an abundant number, since it is smaller than the sum of its proper divisors (5869863552).

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

1799159040 is an equidigital number, since it uses as much as digits as its factorization.

1799159040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 1799159040 is about 42416.4949046948. The cubic root of 1799159040 is about 1216.2509292867.

The spelling of 1799159040 in words is "one billion, seven hundred ninety-nine million, one hundred fifty-nine thousand, forty".