21674050 has 48 divisors (see below), whose sum is σ = 43068672. Its totient is φ = 8096000.

The previous prime is 21674047. The next prime is 21674057. The reversal of 21674050 is 5047612.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (21674057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53850 + ... + 54250.

It is an arithmetic number, because the mean of its divisors is an integer number (897264).

Almost surely, 2^21674050 is an apocalyptic number.

21674050 is a deficient number, since it is larger than the sum of its proper divisors (21394622).

21674050 is a wasteful number, since it uses less digits than its factorization.

21674050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 21674050 is about 4655.5397109250. The cubic root of 21674050 is about 278.8132167078.

The spelling of 21674050 in words is "twenty-one million, six hundred seventy-four thousand, fifty".