403240412 has 48 divisors (see below), whose sum is σ = 745941504. Its totient is φ = 190512000.

The previous prime is 403240373. The next prime is 403240429. The reversal of 403240412 is 214042304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487837 + ... + 1488107.

It is an arithmetic number, because the mean of its divisors is an integer number (15540448).

Almost surely, 2^403240412 is an apocalyptic number.

It is an amenable number.

403240412 is a deficient number, since it is larger than the sum of its proper divisors (342701092).

403240412 is a wasteful number, since it uses less digits than its factorization.

403240412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 403240412 is about 20080.8468944913. The cubic root of 403240412 is about 738.7905810738.

Adding to 403240412 its reverse (214042304), we get a palindrome (617282716).

It can be divided in two parts, 4032 and 40412, that added together give a palindrome (44444).

The spelling of 403240412 in words is "four hundred three million, two hundred forty thousand, four hundred twelve".