214405432 has 16 divisors (see below), whose sum is σ = 402569640. Its totient is φ = 107053536.

The previous prime is 214405403. The next prime is 214405463. The reversal of 214405432 is 234504412.

It is a happy number.

It is a super-2 number, since 2×214405432² = 91939378542213248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214405397 and 214405406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12418 + ... + 24145.

Almost surely, 2^214405432 is an apocalyptic number.

It is an amenable number.

214405432 is a deficient number, since it is larger than the sum of its proper divisors (188164208).

214405432 is a wasteful number, since it uses less digits than its factorization.

214405432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37302 (or 37298 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 214405432 is about 14642.5896616685. The cubic root of 214405432 is about 598.5198999904.

Adding to 214405432 its reverse (234504412), we get a palindrome (448909844).

The spelling of 214405432 in words is "two hundred fourteen million, four hundred five thousand, four hundred thirty-two".