405196234738 has 8 divisors (see below), whose sum is σ = 607803986988. Its totient is φ = 202594905744.

The previous prime is 405196234697. The next prime is 405196234757. The reversal of 405196234738 is 837432691504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 323530027209 + 81666207529 = 568797^2 + 285773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444881 + ... + 1702372.

It is a 1-persistent number, because it is pandigital, but 2⋅405196234738 = 810392469476 is not.

Almost surely, 2^405196234738 is an apocalyptic number.

405196234738 is a deficient number, since it is larger than the sum of its proper divisors (202607752250).

405196234738 is a wasteful number, since it uses less digits than its factorization.

405196234738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211628.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 405196234738 in words is "four hundred five billion, one hundred ninety-six million, two hundred thirty-four thousand, seven hundred thirty-eight".