1090501440 has 112 divisors (see below), whose sum is σ = 3956986752. Its totient is φ = 249255936.

The previous prime is 1090501439. The next prime is 1090501441. The reversal of 1090501440 is 441050901.

It is an interprime number because it is at equal distance from previous prime (1090501439) and next prime (1090501441).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1090501440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090501441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74419 + ... + 87858.

Almost surely, 2^1090501440 is an apocalyptic number.

1090501440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090501440 is an abundant number, since it is smaller than the sum of its proper divisors (2866485312).

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

1090501440 is a wasteful number, since it uses less digits than its factorization.

1090501440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162304 (or 162294 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1090501440 is about 33022.7412550806. The cubic root of 1090501440 is about 1029.3002568113.

The spelling of 1090501440 in words is "one billion, ninety million, five hundred one thousand, four hundred forty".