1440006961 has 8 divisors (see below), whose sum is σ = 1481637024. Its totient is φ = 1398686880.

The previous prime is 1440006949. The next prime is 1440006973. The reversal of 1440006961 is 1696000441.

It is an interprime number because it is at equal distance from previous prime (1440006949) and next prime (1440006973).

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

It is a cyclic number.

It is not a de Polignac number, because 1440006961 - 2⁵ = 1440006929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440006901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68055 + ... + 86668.

It is an arithmetic number, because the mean of its divisors is an integer number (185204628).

Almost surely, 2^1440006961 is an apocalyptic number.

It is an amenable number.

1440006961 is a deficient number, since it is larger than the sum of its proper divisors (41630063).

1440006961 is a wasteful number, since it uses less digits than its factorization.

1440006961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154991.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1440006961 is about 37947.4236411380. The cubic root of 1440006961 is about 1129.2450542520.

The spelling of 1440006961 in words is "one billion, four hundred forty million, six thousand, nine hundred sixty-one".