405214434 has 16 divisors (see below), whose sum is σ = 900476640. Its totient is φ = 135071460.

The previous prime is 405214427. The next prime is 405214507. The reversal of 405214434 is 434412504.

It is a happy number.

405214434 is a `hidden beast` number, since 405 + 214 + 43 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 405214398 and 405214407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3751932 + ... + 3752039.

It is an arithmetic number, because the mean of its divisors is an integer number (56279790).

Almost surely, 2^405214434 is an apocalyptic number.

405214434 is an abundant number, since it is smaller than the sum of its proper divisors (495262206).

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

405214434 is a wasteful number, since it uses less digits than its factorization.

405214434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503982 (or 7503976 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 405214434 is about 20129.9387480439. The cubic root of 405214434 is about 739.9941769690.

Adding to 405214434 its reverse (434412504), we get a palindrome (839626938).

The spelling of 405214434 in words is "four hundred five million, two hundred fourteen thousand, four hundred thirty-four".