400030082 has 8 divisors (see below), whose sum is σ = 601765500. Its totient is φ = 199441584.

The previous prime is 400030073. The next prime is 400030087. The reversal of 400030082 is 280030004.

It can be written as a sum of positive squares in 2 ways, for example, as 345550921 + 54479161 = 18589^2 + 7381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 400030082.

It is not an unprimeable number, because it can be changed into a prime (400030087) 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, 285857 + ... + 287252.

Almost surely, 2^400030082 is an apocalyptic number.

400030082 is a deficient number, since it is larger than the sum of its proper divisors (201735418).

400030082 is a wasteful number, since it uses less digits than its factorization.

400030082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573460.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400030082 is about 20000.7520358611. The cubic root of 400030082 is about 736.8247697710.

Adding to 400030082 its reverse (280030004), we get a palindrome (680060086).

The spelling of 400030082 in words is "four hundred million, thirty thousand, eighty-two".