21948202 has 8 divisors (see below), whose sum is σ = 33725412. Its totient is φ = 10706400.

The previous prime is 21948169. The next prime is 21948221. The reversal of 21948202 is 20284912.

It can be written as a sum of positive squares in 2 ways, for example, as 14280841 + 7667361 = 3779^2 + 2769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133749 + ... + 133912.

Almost surely, 2^21948202 is an apocalyptic number.

21948202 is a deficient number, since it is larger than the sum of its proper divisors (11777210).

21948202 is a wasteful number, since it uses less digits than its factorization.

21948202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267704.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 21948202 is about 4684.8908204994. The cubic root of 21948202 is about 279.9838511095.

The spelling of 21948202 in words is "twenty-one million, nine hundred forty-eight thousand, two hundred two".