1296425430 has 24 divisors (see below), whose sum is σ = 3370706352. Its totient is φ = 345713424.

The previous prime is 1296425419. The next prime is 1296425443. The reversal of 1296425430 is 345246921.

It is a happy number.

1296425430 is a `hidden beast` number, since 1 + 2 + 9 + 642 + 5 + 4 + 3 + 0 = 666.

It is a super-4 number, since 4×1296425430⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent 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, 7202274 + ... + 7202453.

It is an arithmetic number, because the mean of its divisors is an integer number (140446098).

Almost surely, 2^1296425430 is an apocalyptic number.

1296425430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1296425430 is an abundant number, since it is smaller than the sum of its proper divisors (2074280922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296425430 is a wasteful number, since it uses less digits than its factorization.

1296425430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404740 (or 14404737 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1296425430 is about 36005.9082651723. The cubic root of 1296425430 is about 1090.3916416623.

It can be divided in two parts, 1296425 and 430, that added together give a triangular number (1296855 = T₁₆₁₀).

The spelling of 1296425430 in words is "one billion, two hundred ninety-six million, four hundred twenty-five thousand, four hundred thirty".