21414332 has 24 divisors (see below), whose sum is σ = 38673936. Its totient is φ = 10370048.

The previous prime is 21414313. The next prime is 21414361. The reversal of 21414332 is 23341412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16988 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (1611414).

Almost surely, 2^21414332 is an apocalyptic number.

It is an amenable number.

21414332 is a deficient number, since it is larger than the sum of its proper divisors (17259604).

21414332 is a wasteful number, since it uses less digits than its factorization.

21414332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1355 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 21414332 is about 4627.5622091983. The cubic root of 21414332 is about 277.6950748044.

Adding to 21414332 its reverse (23341412), we get a palindrome (44755744).

The spelling of 21414332 in words is "twenty-one million, four hundred fourteen thousand, three hundred thirty-two".