21377362 has 4 divisors (see below), whose sum is σ = 32066046. Its totient is φ = 10688680.

The previous prime is 21377351. The next prime is 21377371. The reversal of 21377362 is 26377312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 8994001 = 3519^2 + 2999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5344339 + ... + 5344342.

Almost surely, 2^21377362 is an apocalyptic number.

21377362 is a deficient number, since it is larger than the sum of its proper divisors (10688684).

21377362 is a wasteful number, since it uses less digits than its factorization.

21377362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688683.

The product of its digits is 10584, while the sum is 31.

The square root of 21377362 is about 4623.5659398348. The cubic root of 21377362 is about 277.5351772087.

The spelling of 21377362 in words is "twenty-one million, three hundred seventy-seven thousand, three hundred sixty-two".