1420194625 has 24 divisors (see below), whose sum is σ = 1809753192. Its totient is φ = 1112311200.

The previous prime is 1420194623. The next prime is 1420194631. The reversal of 1420194625 is 5264910241.

It can be written as a sum of positive squares in 4 ways, for example, as 13719616 + 1406475009 = 3704^2 + 37503^2 .

It is not a de Polignac number, because 1420194625 - 2¹ = 1420194623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420194623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3067144 + ... + 3067606.

It is an arithmetic number, because the mean of its divisors is an integer number (75406383).

Almost surely, 2^1420194625 is an apocalyptic number.

It is an amenable number.

1420194625 is a deficient number, since it is larger than the sum of its proper divisors (389558567).

1420194625 is an frugal number, since it uses more digits than its factorization.

1420194625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1420194625 is about 37685.4696799708. The cubic root of 1420194625 is about 1124.0422136115.

The spelling of 1420194625 in words is "one billion, four hundred twenty million, one hundred ninety-four thousand, six hundred twenty-five".