21119634 has 24 divisors (see below), whose sum is σ = 46006272. Its totient is φ = 7001880.

The previous prime is 21119629. The next prime is 21119639. The reversal of 21119634 is 43691112.

21119634 is a `hidden beast` number, since 2 + 11 + 19 + 634 = 666.

It is an interprime number because it is at equal distance from previous prime (21119629) and next prime (21119639).

It is a junction number, because it is equal to n+sod(n) for n = 21119598 and 21119607.

It is not an unprimeable number, because it can be changed into a prime (21119639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (1916928).

Almost surely, 2^21119634 is an apocalyptic number.

21119634 is an abundant number, since it is smaller than the sum of its proper divisors (24886638).

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

21119634 is a wasteful number, since it uses less digits than its factorization.

21119634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342 (or 6339 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 21119634 is about 4595.6102967941. The cubic root of 21119634 is about 276.4153324646.

The spelling of 21119634 in words is "twenty-one million, one hundred nineteen thousand, six hundred thirty-four".