214821492 has 12 divisors (see below), whose sum is σ = 501250176. Its totient is φ = 71607160.

The previous prime is 214821491. The next prime is 214821493. The reversal of 214821492 is 294128412.

It is an interprime number because it is at equal distance from previous prime (214821491) and next prime (214821493).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×214821492² = 92296546850212128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214821491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8950884 + ... + 8950907.

It is an arithmetic number, because the mean of its divisors is an integer number (41770848).

Almost surely, 2^214821492 is an apocalyptic number.

It is an amenable number.

214821492 is an abundant number, since it is smaller than the sum of its proper divisors (286428684).

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

214821492 is a wasteful number, since it uses less digits than its factorization.

214821492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17901798 (or 17901796 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 214821492 is about 14656.7899623349. The cubic root of 214821492 is about 598.9067982819.

The spelling of 214821492 in words is "two hundred fourteen million, eight hundred twenty-one thousand, four hundred ninety-two".