21341190 has 32 divisors (see below), whose sum is σ = 55159776. Its totient is φ = 5253120.

The previous prime is 21341183. The next prime is 21341191. The reversal of 21341190 is 9114312.

It is a super-2 number, since 2×21341190² = 910892781232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26971 + ... + 27750.

It is an arithmetic number, because the mean of its divisors is an integer number (1723743).

Almost surely, 2^21341190 is an apocalyptic number.

21341190 is an abundant number, since it is smaller than the sum of its proper divisors (33818586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21341190 is a wasteful number, since it uses less digits than its factorization.

21341190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54744.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 21341190 is about 4619.6525843401. The cubic root of 21341190 is about 277.3785524891.

The spelling of 21341190 in words is "twenty-one million, three hundred forty-one thousand, one hundred ninety".