21376341 has 12 divisors (see below), whose sum is σ = 35288032. Its totient is φ = 12215016.

The previous prime is 21376339. The next prime is 21376351. The reversal of 21376341 is 14367312.

21376341 is a `hidden beast` number, since 21 + 3 + 7 + 634 + 1 = 666.

It is not a de Polignac number, because 21376341 - 2¹ = 21376339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21376301) 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, 169591 + ... + 169716.

Almost surely, 2^21376341 is an apocalyptic number.

21376341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21376341 is a deficient number, since it is larger than the sum of its proper divisors (13911691).

21376341 is a wasteful number, since it uses less digits than its factorization.

21376341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339320 (or 339317 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 21376341 is about 4623.4555259027. The cubic root of 21376341 is about 277.5307587040.

The spelling of 21376341 in words is "twenty-one million, three hundred seventy-six thousand, three hundred forty-one".