1795251440 has 20 divisors (see below), whose sum is σ = 4173959784. Its totient is φ = 718100544.

The previous prime is 1795251439. The next prime is 1795251443. The reversal of 1795251440 is 441525971.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1795251394 and 1795251403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1795251443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11220242 + ... + 11220401.

Almost surely, 2^1795251440 is an apocalyptic number.

1795251440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1795251440 is an abundant number, since it is smaller than the sum of its proper divisors (2378708344).

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

1795251440 is a wasteful number, since it uses less digits than its factorization.

1795251440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22440656 (or 22440650 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1795251440 is about 42370.4075977562. The cubic root of 1795251440 is about 1215.3697644519.

The spelling of 1795251440 in words is "one billion, seven hundred ninety-five million, two hundred fifty-one thousand, four hundred forty".