1430215820 has 24 divisors (see below), whose sum is σ = 3276494928. Its totient is φ = 520078400.

The previous prime is 1430215817. The next prime is 1430215837. The reversal of 1430215820 is 285120341.

It is a self number, because there is not a number n which added to its sum of digits gives 1430215820.

It is an unprimeable number.

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, 3250271 + ... + 3250710.

It is an arithmetic number, because the mean of its divisors is an integer number (136520622).

Almost surely, 2^1430215820 is an apocalyptic number.

1430215820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430215820 is an abundant number, since it is smaller than the sum of its proper divisors (1846279108).

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

1430215820 is a wasteful number, since it uses less digits than its factorization.

1430215820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501001 (or 6500999 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1430215820 is about 37818.1942985119. The cubic root of 1430215820 is about 1126.6798462953.

It can be divided in two parts, 143021 and 5820, that added together give a palindrome (148841).

The spelling of 1430215820 in words is "one billion, four hundred thirty million, two hundred fifteen thousand, eight hundred twenty".