1440006929 has 2 divisors, whose sum is σ = 1440006930. Its totient is φ = 1440006928.

The previous prime is 1440006901. The next prime is 1440006943. The reversal of 1440006929 is 9296000441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061782225 + 378224704 = 32585^2 + 19448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440006929 is a prime.

It is a super-2 number, since 2×1440006929² = 4147239911136022082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440006949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720003464 + 720003465.

It is an arithmetic number, because the mean of its divisors is an integer number (720003465).

Almost surely, 2^1440006929 is an apocalyptic number.

It is an amenable number.

1440006929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440006929 is an equidigital number, since it uses as much as digits as its factorization.

1440006929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1440006929 is about 37947.4232195020. The cubic root of 1440006929 is about 1129.2450458873.

The spelling of 1440006929 in words is "one billion, four hundred forty million, six thousand, nine hundred twenty-nine".