21032414 has 16 divisors (see below), whose sum is σ = 34618752. Its totient is φ = 9523488.

The previous prime is 21032399. The next prime is 21032437. The reversal of 21032414 is 41423012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21032392 and 21032401.

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, 6254 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (2163672).

Almost surely, 2^21032414 is an apocalyptic number.

21032414 is a deficient number, since it is larger than the sum of its proper divisors (13586338).

21032414 is a wasteful number, since it uses less digits than its factorization.

21032414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15331.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 21032414 is about 4586.1109886264. The cubic root of 21032414 is about 276.0342935054.

Adding to 21032414 its reverse (41423012), we get a palindrome (62455426).

The spelling of 21032414 in words is "twenty-one million, thirty-two thousand, four hundred fourteen".