403040412 has 36 divisors (see below), whose sum is σ = 1019458440. Its totient is φ = 134259552.

The previous prime is 403040411. The next prime is 403040413. The reversal of 403040412 is 214040304.

It is an interprime number because it is at equal distance from previous prime (403040411) and next prime (403040413).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403040411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77139 + ... + 82197.

It is an arithmetic number, because the mean of its divisors is an integer number (28318290).

Almost surely, 2^403040412 is an apocalyptic number.

It is an amenable number.

403040412 is an abundant number, since it is smaller than the sum of its proper divisors (616418028).

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

403040412 is a wasteful number, since it uses less digits than its factorization.

403040412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7277 counting only the distinct ones).

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

The square root of 403040412 is about 20075.8664072064. The cubic root of 403040412 is about 738.6684185896.

Adding to 403040412 its reverse (214040304), we get a palindrome (617080716).

The spelling of 403040412 in words is "four hundred three million, forty thousand, four hundred twelve".