214799988 has 24 divisors (see below), whose sum is σ = 539754208. Its totient is φ = 66092256.

The previous prime is 214799983. The next prime is 214799989. The reversal of 214799988 is 889997412.

It is a super-2 number, since 2×214799988² = 92278069689600288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214799983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688306 + ... + 688617.

Almost surely, 2^214799988 is an apocalyptic number.

It is an amenable number.

214799988 is an abundant number, since it is smaller than the sum of its proper divisors (324954220).

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

214799988 is a wasteful number, since it uses less digits than its factorization.

214799988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376943 (or 1376941 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 57.

The square root of 214799988 is about 14656.0563590619. The cubic root of 214799988 is about 598.8868137490.

The spelling of 214799988 in words is "two hundred fourteen million, seven hundred ninety-nine thousand, nine hundred eighty-eight".