21834802 has 16 divisors (see below), whose sum is σ = 35868672. Its totient is φ = 9886320.

The previous prime is 21834793. The next prime is 21834803. The reversal of 21834802 is 20843812.

It is not an unprimeable number, because it can be changed into a prime (21834803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303 + ... + 7885.

It is an arithmetic number, because the mean of its divisors is an integer number (2241792).

Almost surely, 2^21834802 is an apocalyptic number.

21834802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21834802 is a deficient number, since it is larger than the sum of its proper divisors (14033870).

21834802 is a wasteful number, since it uses less digits than its factorization.

21834802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 21834802 is about 4672.7724104647. The cubic root of 21834802 is about 279.5008197808.

The spelling of 21834802 in words is "twenty-one million, eight hundred thirty-four thousand, eight hundred two".