1681467333 has 16 divisors (see below), whose sum is σ = 2759331456. Its totient is φ = 886927680.

The previous prime is 1681467329. The next prime is 1681467341. The reversal of 1681467333 is 3337641861.

It is a happy number.

It is not a de Polignac number, because 1681467333 - 2² = 1681467329 is a prime.

It is a super-2 number, since 2×1681467333² = 5654664783892265778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681467353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079338 + ... + 3079883.

It is an arithmetic number, because the mean of its divisors is an integer number (172458216).

Almost surely, 2^1681467333 is an apocalyptic number.

1681467333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1681467333 is a deficient number, since it is larger than the sum of its proper divisors (1077864123).

1681467333 is a wasteful number, since it uses less digits than its factorization.

1681467333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6159244.

The product of its digits is 217728, while the sum is 42.

The square root of 1681467333 is about 41005.6987868760. The cubic root of 1681467333 is about 1189.1303895544.

The spelling of 1681467333 in words is "one billion, six hundred eighty-one million, four hundred sixty-seven thousand, three hundred thirty-three".