187214434 has 32 divisors (see below), whose sum is σ = 325140480. Its totient is φ = 80005200.

The previous prime is 187214431. The next prime is 187214441. The reversal of 187214434 is 434412781.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 187214434.

It is not an unprimeable number, because it can be changed into a prime (187214431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26719 + ... + 32989.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2^187214434 is an apocalyptic number.

187214434 is a deficient number, since it is larger than the sum of its proper divisors (137926046).

187214434 is a wasteful number, since it uses less digits than its factorization.

187214434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366.

The product of its digits is 21504, while the sum is 34.

The square root of 187214434 is about 13682.6325683327. The cubic root of 187214434 is about 572.0664034439.

The spelling of 187214434 in words is "one hundred eighty-seven million, two hundred fourteen thousand, four hundred thirty-four".