1209284830 has 64 divisors (see below), whose sum is σ = 2495707200. Its totient is φ = 418176000.

The previous prime is 1209284821. The next prime is 1209284861. The reversal of 1209284830 is 384829021.

It is a self number, because there is not a number n which added to its sum of digits gives 1209284830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217080 + ... + 222580.

It is an arithmetic number, because the mean of its divisors is an integer number (38995425).

Almost surely, 2^1209284830 is an apocalyptic number.

1209284830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1209284830 is an abundant number, since it is smaller than the sum of its proper divisors (1286422370).

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

1209284830 is a wasteful number, since it uses less digits than its factorization.

1209284830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1209284830 is about 34774.7728964547. The cubic root of 1209284830 is about 1065.3922541372.

The spelling of 1209284830 in words is "one billion, two hundred nine million, two hundred eighty-four thousand, eight hundred thirty".