1427400625 has 60 divisors (see below), whose sum is σ = 2096928768. Its totient is φ = 968436000.

The previous prime is 1427400607. The next prime is 1427400641. The reversal of 1427400625 is 5260047241.

It is not a de Polignac number, because 1427400625 - 2¹⁷ = 1427269553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3889192 + ... + 3889558.

Almost surely, 2^1427400625 is an apocalyptic number.

It is an amenable number.

1427400625 is a deficient number, since it is larger than the sum of its proper divisors (669528143).

1427400625 is an equidigital number, since it uses as much as digits as its factorization.

1427400625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1427400625 is about 37780.9558507987. The cubic root of 1427400625 is about 1125.9401195090.

Adding to 1427400625 its reverse (5260047241), we get a palindrome (6687447866).

It can be divided in two parts, 1427400 and 625, that added together give a square (1428025 = 1195²).

The spelling of 1427400625 in words is "one billion, four hundred twenty-seven million, four hundred thousand, six hundred twenty-five".