214242690 has 32 divisors (see below), whose sum is σ = 515434176. Its totient is φ = 56992320.

The previous prime is 214242667. The next prime is 214242697. The reversal of 214242690 is 96242412.

It is a super-2 number, since 2×214242690² = 91799860436872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (214242697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4149 + ... + 21111.

It is an arithmetic number, because the mean of its divisors is an integer number (16107318).

Almost surely, 2^214242690 is an apocalyptic number.

214242690 is an abundant number, since it is smaller than the sum of its proper divisors (301191486).

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

214242690 is a wasteful number, since it uses less digits than its factorization.

214242690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 214242690 is about 14637.0314613312. The cubic root of 214242690 is about 598.3684284230.

The spelling of 214242690 in words is "two hundred fourteen million, two hundred forty-two thousand, six hundred ninety".