403023142 has 4 divisors (see below), whose sum is σ = 604534716. Its totient is φ = 201511570.

The previous prime is 403023139. The next prime is 403023149. The reversal of 403023142 is 241320304.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403023149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100755784 + ... + 100755787.

It is an arithmetic number, because the mean of its divisors is an integer number (151133679).

Almost surely, 2^403023142 is an apocalyptic number.

403023142 is a deficient number, since it is larger than the sum of its proper divisors (201511574).

403023142 is a wasteful number, since it uses less digits than its factorization.

403023142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201511573.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 403023142 is about 20075.4362841757. The cubic root of 403023142 is about 738.6578679637.

Adding to 403023142 its reverse (241320304), we get a palindrome (644343446).

It can be divided in two parts, 4030 and 23142, that added together give a palindrome (27172).

The spelling of 403023142 in words is "four hundred three million, twenty-three thousand, one hundred forty-two".