405574742 has 4 divisors (see below), whose sum is σ = 608362116. Its totient is φ = 202787370.

The previous prime is 405574739. The next prime is 405574759. The reversal of 405574742 is 247475504.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 405574696 and 405574705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101393684 + ... + 101393687.

It is an arithmetic number, because the mean of its divisors is an integer number (152090529).

Almost surely, 2^405574742 is an apocalyptic number.

405574742 is a deficient number, since it is larger than the sum of its proper divisors (202787374).

405574742 is a wasteful number, since it uses less digits than its factorization.

405574742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202787373.

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 405574742 is about 20138.8863147891. The cubic root of 405574742 is about 740.2134409871.

The spelling of 405574742 in words is "four hundred five million, five hundred seventy-four thousand, seven hundred forty-two".