21829462 has 16 divisors (see below), whose sum is σ = 35033040. Its totient is φ = 10165248.

The previous prime is 21829439. The next prime is 21829463. The reversal of 21829462 is 26492812.

It is a super-2 number, since 2×21829462² = 953050822418888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21829463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12 + ... + 6607.

It is an arithmetic number, because the mean of its divisors is an integer number (2189565).

Almost surely, 2^21829462 is an apocalyptic number.

21829462 is a deficient number, since it is larger than the sum of its proper divisors (13203578).

21829462 is a wasteful number, since it uses less digits than its factorization.

21829462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735.

The product of its digits is 13824, while the sum is 34.

The square root of 21829462 is about 4672.2009802662. The cubic root of 21829462 is about 279.4780326713.

The spelling of 21829462 in words is "twenty-one million, eight hundred twenty-nine thousand, four hundred sixty-two".