1440101040 has 80 divisors (see below), whose sum is σ = 5102078208. Its totient is φ = 329165568.

The previous prime is 1440101017. The next prime is 1440101051. The reversal of 1440101040 is 401010441.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426922 + ... + 430281.

Almost surely, 2^1440101040 is an apocalyptic number.

1440101040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440101040 is an abundant number, since it is smaller than the sum of its proper divisors (3661977168).

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

1440101040 is a wasteful number, since it uses less digits than its factorization.

1440101040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857226 (or 857220 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1440101040 is about 37948.6632175627. The cubic root of 1440101040 is about 1129.2696457841.

Adding to 1440101040 its reverse (401010441), we get a palindrome (1841111481).

The spelling of 1440101040 in words is "one billion, four hundred forty million, one hundred one thousand, forty".