403001400042 has 24 divisors (see below), whose sum is σ = 877602041316. Its totient is φ = 133651901376.

The previous prime is 403001400013. The next prime is 403001400097. The reversal of 403001400042 is 240004100304.

It can be written as a sum of positive squares in 2 ways, for example, as 320425055721 + 82576344321 = 566061^2 + 287361^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 403001399988 and 403001400024.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56821243 + ... + 56828334.

Almost surely, 2^403001400042 is an apocalyptic number.

403001400042 is an abundant number, since it is smaller than the sum of its proper divisors (474600641274).

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

403001400042 is a wasteful number, since it uses less digits than its factorization.

403001400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113649782 (or 113649779 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 403001400042 its reverse (240004100304), we get a palindrome (643005500346).

The spelling of 403001400042 in words is "four hundred three billion, one million, four hundred thousand, forty-two".