400730794 has 16 divisors (see below), whose sum is σ = 644185728. Its totient is φ = 186473232.

The previous prime is 400730791. The next prime is 400730807. The reversal of 400730794 is 497037004.

It is not an unprimeable number, because it can be changed into a prime (400730791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116022 + ... + 119425.

It is an arithmetic number, because the mean of its divisors is an integer number (40261608).

Almost surely, 2^400730794 is an apocalyptic number.

400730794 is a deficient number, since it is larger than the sum of its proper divisors (243454934).

400730794 is a wasteful number, since it uses less digits than its factorization.

400730794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235509.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 400730794 is about 20018.2615129286. The cubic root of 400730794 is about 737.2547380946.

Adding to 400730794 its reverse (497037004), we get a palindrome (897767798).

The spelling of 400730794 in words is "four hundred million, seven hundred thirty thousand, seven hundred ninety-four".