21341950 has 72 divisors (see below), whose sum is σ = 47836224. Its totient is φ = 7056000.

The previous prime is 21341927. The next prime is 21341951. The reversal of 21341950 is 5914312.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341951) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75810 + ... + 76090.

It is an arithmetic number, because the mean of its divisors is an integer number (664392).

Almost surely, 2^21341950 is an apocalyptic number.

21341950 is an abundant number, since it is smaller than the sum of its proper divisors (26494274).

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

21341950 is a wasteful number, since it uses less digits than its factorization.

21341950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 21341950 is about 4619.7348408756. The cubic root of 21341950 is about 277.3818451077.

The spelling of 21341950 in words is "twenty-one million, three hundred forty-one thousand, nine hundred fifty".