214231992 has 128 divisors (see below), whose sum is σ = 616896000. Its totient is φ = 61447680.

The previous prime is 214231991. The next prime is 214231993. The reversal of 214231992 is 299132412.

It is an interprime number because it is at equal distance from previous prime (214231991) and next prime (214231993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214231991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420634 + ... + 421142.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 2^214231992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214231992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308448000).

214231992 is an abundant number, since it is smaller than the sum of its proper divisors (402664008).

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

214231992 is a wasteful number, since it uses less digits than its factorization.

214231992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 617 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 214231992 is about 14636.6660138161. Note that the first 3 decimals coincide. The cubic root of 214231992 is about 598.3584686090.

The spelling of 214231992 in words is "two hundred fourteen million, two hundred thirty-one thousand, nine hundred ninety-two".