400245234 has 8 divisors (see below), whose sum is σ = 800490480. Its totient is φ = 133415076.

The previous prime is 400245233. The next prime is 400245259. The reversal of 400245234 is 432542004.

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

400245234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (400245233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33353764 + ... + 33353775.

It is an arithmetic number, because the mean of its divisors is an integer number (100061310).

Almost surely, 2^400245234 is an apocalyptic number.

400245234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400245234 is a wasteful number, since it uses less digits than its factorization.

400245234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66707544.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 400245234 is about 20006.1299106049. The cubic root of 400245234 is about 736.9568439302.

Adding to 400245234 its reverse (432542004), we get a palindrome (832787238).

The spelling of 400245234 in words is "four hundred million, two hundred forty-five thousand, two hundred thirty-four".