400041442 has 8 divisors (see below), whose sum is σ = 602183376. Its totient is φ = 199313652.

The previous prime is 400041353. The next prime is 400041449. The reversal of 400041442 is 244140004.

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

It is not an unprimeable number, because it can be changed into a prime (400041449) 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, 352828 + ... + 353959.

It is an arithmetic number, because the mean of its divisors is an integer number (75272922).

Almost surely, 2^400041442 is an apocalyptic number.

400041442 is a deficient number, since it is larger than the sum of its proper divisors (202141934).

400041442 is a wasteful number, since it uses less digits than its factorization.

400041442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707072.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 400041442 is about 20001.0360231664. The cubic root of 400041442 is about 736.8317444549.

Adding to 400041442 its reverse (244140004), we get a palindrome (644181446).

The spelling of 400041442 in words is "four hundred million, forty-one thousand, four hundred forty-two".