400242034 has 8 divisors (see below), whose sum is σ = 602699868. Its totient is φ = 199342080.

The previous prime is 400242013. The next prime is 400242047. The reversal of 400242034 is 430242004.

It can be written as a sum of positive squares in 2 ways, for example, as 376476409 + 23765625 = 19403^2 + 4875^2 .

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, 388827 + ... + 389854.

Almost surely, 2^400242034 is an apocalyptic number.

400242034 is a deficient number, since it is larger than the sum of its proper divisors (202457834).

400242034 is a wasteful number, since it uses less digits than its factorization.

400242034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778940.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 400242034 is about 20006.0499349572. The cubic root of 400242034 is about 736.9548799108.

Adding to 400242034 its reverse (430242004), we get a palindrome (830484038).

The spelling of 400242034 in words is "four hundred million, two hundred forty-two thousand, thirty-four".