1340801625 has 16 divisors (see below), whose sum is σ = 2231094528. Its totient is φ = 715094000.

The previous prime is 1340801621. The next prime is 1340801647. The reversal of 1340801625 is 5261080431.

1340801625 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1340801625 - 2² = 1340801621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340801592 and 1340801601.

It is not an unprimeable number, because it can be changed into a prime (1340801621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1787361 + ... + 1788110.

It is an arithmetic number, because the mean of its divisors is an integer number (139443408).

Almost surely, 2^1340801625 is an apocalyptic number.

1340801625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1340801625 is a deficient number, since it is larger than the sum of its proper divisors (890292903).

1340801625 is an equidigital number, since it uses as much as digits as its factorization.

1340801625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575489 (or 3575479 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1340801625 is about 36616.9581614858. The cubic root of 1340801625 is about 1102.6935710427.

The spelling of 1340801625 in words is "one billion, three hundred forty million, eight hundred one thousand, six hundred twenty-five".