1290204830 has 8 divisors (see below), whose sum is σ = 2322368712. Its totient is φ = 516081928.

The previous prime is 1290204791. The next prime is 1290204869. The reversal of 1290204830 is 384020921.

It is an interprime number because it is at equal distance from previous prime (1290204791) and next prime (1290204869).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1290204793 and 1290204802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64510232 + ... + 64510251.

It is an arithmetic number, because the mean of its divisors is an integer number (290296089).

Almost surely, 2^1290204830 is an apocalyptic number.

1290204830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1290204830 is a deficient number, since it is larger than the sum of its proper divisors (1032163882).

1290204830 is a wasteful number, since it uses less digits than its factorization.

1290204830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129020490.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1290204830 is about 35919.4213483458. The cubic root of 1290204830 is about 1088.6448467662.

The spelling of 1290204830 in words is "one billion, two hundred ninety million, two hundred four thousand, eight hundred thirty".