221374950 has 24 divisors (see below), whose sum is σ = 549010248. Its totient is φ = 59033280.

The previous prime is 221374943. The next prime is 221374957. The reversal of 221374950 is 59473122.

It is an interprime number because it is at equal distance from previous prime (221374943) and next prime (221374957).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221374957) 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, 737767 + ... + 738066.

It is an arithmetic number, because the mean of its divisors is an integer number (22875427).

Almost surely, 2^221374950 is an apocalyptic number.

221374950 is an abundant number, since it is smaller than the sum of its proper divisors (327635298).

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

221374950 is a wasteful number, since it uses less digits than its factorization.

221374950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475848 (or 1475843 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 221374950 is about 14878.6743361094. The cubic root of 221374950 is about 604.9360859559.

The spelling of 221374950 in words is "two hundred twenty-one million, three hundred seventy-four thousand, nine hundred fifty".