214007818 has 16 divisors (see below), whose sum is σ = 339077376. Its totient is φ = 101142720.

The previous prime is 214007813. The next prime is 214007819. The reversal of 214007818 is 818700412.

It is a super-2 number, since 2×214007818² = 91598692330242248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 214007818.

It is not an unprimeable number, because it can be changed into a prime (214007813) 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, 37471 + ... + 42802.

It is an arithmetic number, because the mean of its divisors is an integer number (21192336).

Almost surely, 2^214007818 is an apocalyptic number.

214007818 is a deficient number, since it is larger than the sum of its proper divisors (125069558).

214007818 is a wasteful number, since it uses less digits than its factorization.

214007818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80349.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 214007818 is about 14629.0060496262. The cubic root of 214007818 is about 598.1496868044.

The spelling of 214007818 in words is "two hundred fourteen million, seven thousand, eight hundred eighteen".