1641830460 has 48 divisors (see below), whose sum is σ = 4601179296. Its totient is φ = 437435392.

The previous prime is 1641830419. The next prime is 1641830479. The reversal of 1641830460 is 640381461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60112 + ... + 83048.

It is an arithmetic number, because the mean of its divisors is an integer number (95857902).

Almost surely, 2^1641830460 is an apocalyptic number.

1641830460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1641830460 is an abundant number, since it is smaller than the sum of its proper divisors (2959348836).

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

1641830460 is a wasteful number, since it uses less digits than its factorization.

1641830460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24142 (or 24140 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1641830460 is about 40519.5071539623. The cubic root of 1641830460 is about 1179.7122874145.

The spelling of 1641830460 in words is "one billion, six hundred forty-one million, eight hundred thirty thousand, four hundred sixty".