21476350 has 48 divisors (see below), whose sum is σ = 46747008. Its totient is φ = 7187040.

The previous prime is 21476341. The next prime is 21476353. The reversal of 21476350 is 5367412.

It is a super-2 number, since 2×21476350² = 922467218645000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21476353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14337 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (973896).

Almost surely, 2^21476350 is an apocalyptic number.

21476350 is an abundant number, since it is smaller than the sum of its proper divisors (25270658).

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

21476350 is a wasteful number, since it uses less digits than its factorization.

21476350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 21476350 is about 4634.2583009582. The cubic root of 21476350 is about 277.9628937932.

The spelling of 21476350 in words is "twenty-one million, four hundred seventy-six thousand, three hundred fifty".