405427434 has 64 divisors (see below), whose sum is σ = 882524160. Its totient is φ = 123742080.

The previous prime is 405427381. The next prime is 405427459. The reversal of 405427434 is 434724504.

It is a junction number, because it is equal to n+sod(n) for n = 405427395 and 405427404.

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 31 ways as a sum of consecutive naturals, for example, 593257 + ... + 593939.

It is an arithmetic number, because the mean of its divisors is an integer number (13789440).

Almost surely, 2^405427434 is an apocalyptic number.

405427434 is an abundant number, since it is smaller than the sum of its proper divisors (477096726).

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

405427434 is a wasteful number, since it uses less digits than its factorization.

405427434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 53760, while the sum is 33.

The square root of 405427434 is about 20135.2286801019. The cubic root of 405427434 is about 740.1238129817.

The spelling of 405427434 in words is "four hundred five million, four hundred twenty-seven thousand, four hundred thirty-four".