1402989425 has 12 divisors (see below), whose sum is σ = 1742620236. Its totient is φ = 1120512000.

The previous prime is 1402989407. The next prime is 1402989439. The reversal of 1402989425 is 5249892041.

It can be written as a sum of positive squares in 6 ways, for example, as 152942689 + 1250046736 = 12367^2 + 35356^2 .

It is not a de Polignac number, because 1402989425 - 2¹⁰ = 1402988401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31664 + ... + 61713.

It is an arithmetic number, because the mean of its divisors is an integer number (145218353).

Almost surely, 2^1402989425 is an apocalyptic number.

It is an amenable number.

1402989425 is a deficient number, since it is larger than the sum of its proper divisors (339630811).

1402989425 is an equidigital number, since it uses as much as digits as its factorization.

1402989425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93988 (or 93983 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1402989425 is about 37456.5004371738. The cubic root of 1402989425 is about 1119.4846228410.

The spelling of 1402989425 in words is "one billion, four hundred two million, nine hundred eighty-nine thousand, four hundred twenty-five".