1290057430 has 16 divisors (see below), whose sum is σ = 2322753264. Its totient is φ = 515878560.

The previous prime is 1290057397. The next prime is 1290057437. The reversal of 1290057430 is 347500921.

It is a junction number, because it is equal to n+sod(n) for n = 1290057392 and 1290057401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290057437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24169 + ... + 56251.

It is an arithmetic number, because the mean of its divisors is an integer number (145172079).

Almost surely, 2^1290057430 is an apocalyptic number.

1290057430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1290057430 is a deficient number, since it is larger than the sum of its proper divisors (1032695834).

1290057430 is a wasteful number, since it uses less digits than its factorization.

1290057430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36111.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1290057430 is about 35917.3694749490. The cubic root of 1290057430 is about 1088.6033876227.

The spelling of 1290057430 in words is "one billion, two hundred ninety million, fifty-seven thousand, four hundred thirty".