1440325061 has 12 divisors (see below), whose sum is σ = 1676757600. Its totient is φ = 1233623160.

The previous prime is 1440325043. The next prime is 1440325141. The reversal of 1440325061 is 1605230441.

It is not a de Polignac number, because 1440325061 - 2⁶ = 1440324997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1440325061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440321061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58046 + ... + 79056.

It is an arithmetic number, because the mean of its divisors is an integer number (139729800).

Almost surely, 2^1440325061 is an apocalyptic number.

It is an amenable number.

1440325061 is a deficient number, since it is larger than the sum of its proper divisors (236432539).

1440325061 is a wasteful number, since it uses less digits than its factorization.

1440325061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22424 (or 22417 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1440325061 is about 37951.6147350808. The cubic root of 1440325061 is about 1129.3281988512.

The spelling of 1440325061 in words is "one billion, four hundred forty million, three hundred twenty-five thousand, sixty-one".