1402081625 has 16 divisors (see below), whose sum is σ = 1999770240. Its totient is φ = 961426800.

The previous prime is 1402081621. The next prime is 1402081631. The reversal of 1402081625 is 5261802041.

It is not a de Polignac number, because 1402081625 - 2² = 1402081621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402081621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800315 + ... + 802064.

It is an arithmetic number, because the mean of its divisors is an integer number (124985640).

Almost surely, 2^1402081625 is an apocalyptic number.

It is an amenable number.

1402081625 is a deficient number, since it is larger than the sum of its proper divisors (597688615).

1402081625 is an equidigital number, since it uses as much as digits as its factorization.

1402081625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602401 (or 1602391 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1402081625 is about 37444.3804194969. The cubic root of 1402081625 is about 1119.2431177157.

Adding to 1402081625 its reverse (5261802041), we get a palindrome (6663883666).

The spelling of 1402081625 in words is "one billion, four hundred two million, eighty-one thousand, six hundred twenty-five".