406074728 has 16 divisors (see below), whose sum is σ = 766063680. Its totient is φ = 201791088.

The previous prime is 406074727. The next prime is 406074751. The reversal of 406074728 is 827470604.

It is a junction number, because it is equal to n+sod(n) for n = 406074691 and 406074700.

It is not an unprimeable number, because it can be changed into a prime (406074727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154400 + ... + 157007.

It is an arithmetic number, because the mean of its divisors is an integer number (47878980).

Almost surely, 2^406074728 is an apocalyptic number.

It is an amenable number.

406074728 is a deficient number, since it is larger than the sum of its proper divisors (359988952).

406074728 is a wasteful number, since it uses less digits than its factorization.

406074728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311576 (or 311572 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 406074728 is about 20151.2959384750. The cubic root of 406074728 is about 740.5174904757.

The spelling of 406074728 in words is "four hundred six million, seventy-four thousand, seven hundred twenty-eight".