403140442 has 8 divisors (see below), whose sum is σ = 636537600. Its totient is φ = 190961244.

The previous prime is 403140433. The next prime is 403140467. The reversal of 403140442 is 244041304.

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, 5304442 + ... + 5304517.

It is an arithmetic number, because the mean of its divisors is an integer number (79567200).

Almost surely, 2^403140442 is an apocalyptic number.

403140442 is a deficient number, since it is larger than the sum of its proper divisors (233397158).

403140442 is a wasteful number, since it uses less digits than its factorization.

403140442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608980.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 403140442 is about 20078.3575523497. The cubic root of 403140442 is about 738.7295232065.

Adding to 403140442 its reverse (244041304), we get a palindrome (647181746).

The spelling of 403140442 in words is "four hundred three million, one hundred forty thousand, four hundred forty-two".