21341398 has 16 divisors (see below), whose sum is σ = 34616736. Its totient is φ = 9809280.

The previous prime is 21341387. The next prime is 21341407. The reversal of 21341398 is 89314312.

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, 5278 + ... + 8398.

It is an arithmetic number, because the mean of its divisors is an integer number (2163546).

Almost surely, 2^21341398 is an apocalyptic number.

21341398 is a deficient number, since it is larger than the sum of its proper divisors (13275338).

21341398 is a wasteful number, since it uses less digits than its factorization.

21341398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399.

The product of its digits is 5184, while the sum is 31.

The square root of 21341398 is about 4619.6750968006. The cubic root of 21341398 is about 277.3794536346.

The spelling of 21341398 in words is "twenty-one million, three hundred forty-one thousand, three hundred ninety-eight".