1440326701 has 4 divisors (see below), whose sum is σ = 1571265504. Its totient is φ = 1309387900.

The previous prime is 1440326663. The next prime is 1440326707. The reversal of 1440326701 is 1076230441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1440326701 - 2²⁹ = 903455789 is a prime.

It is a super-2 number, since 2×1440326701² = 4149082011227086802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440326701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440326707) 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, 65469385 + ... + 65469406.

It is an arithmetic number, because the mean of its divisors is an integer number (392816376).

Almost surely, 2^1440326701 is an apocalyptic number.

1440326701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1440326701 is a deficient number, since it is larger than the sum of its proper divisors (130938803).

1440326701 is a wasteful number, since it uses less digits than its factorization.

1440326701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130938802.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1440326701 is about 37951.6363415334. The cubic root of 1440326701 is about 1129.3286274807.

The spelling of 1440326701 in words is "one billion, four hundred forty million, three hundred twenty-six thousand, seven hundred one".