1799237440 has 448 divisors, whose sum is σ = 5935845888. Its totient is φ = 501350400.

The previous prime is 1799237437. The next prime is 1799237507. The reversal of 1799237440 is 447329971.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-3 number, since 3×1799237440³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13133052 + ... + 13133188.

It is an arithmetic number, because the mean of its divisors is an integer number (13249656).

Almost surely, 2^1799237440 is an apocalyptic number.

1799237440 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 1799237440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2967922944).

1799237440 is an abundant number, since it is smaller than the sum of its proper divisors (4136608448).

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

1799237440 is a wasteful number, since it uses less digits than its factorization.

1799237440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1799237440 is about 42417.4190633989. The cubic root of 1799237440 is about 1216.2685954455.

The spelling of 1799237440 in words is "one billion, seven hundred ninety-nine million, two hundred thirty-seven thousand, four hundred forty".