1440102957 has 8 divisors (see below), whose sum is σ = 1931635776. Its totient is φ = 954319392.

The previous prime is 1440102941. The next prime is 1440102959. The reversal of 1440102957 is 7592010441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440102957 - 2⁴ = 1440102941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440102959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436728 + ... + 1437729.

It is an arithmetic number, because the mean of its divisors is an integer number (241454472).

Almost surely, 2^1440102957 is an apocalyptic number.

It is an amenable number.

1440102957 is a deficient number, since it is larger than the sum of its proper divisors (491532819).

1440102957 is a wasteful number, since it uses less digits than its factorization.

1440102957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874627.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1440102957 is about 37948.6884753610. The cubic root of 1440102957 is about 1129.2701468621.

The spelling of 1440102957 in words is "one billion, four hundred forty million, one hundred two thousand, nine hundred fifty-seven".