403342040 has 16 divisors (see below), whose sum is σ = 907519680. Its totient is φ = 161336800.

The previous prime is 403342001. The next prime is 403342073. The reversal of 403342040 is 40243304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 5041736 + ... + 5041815.

It is an arithmetic number, because the mean of its divisors is an integer number (56719980).

Almost surely, 2^403342040 is an apocalyptic number.

403342040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403342040 is an abundant number, since it is smaller than the sum of its proper divisors (504177640).

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

403342040 is a wasteful number, since it uses less digits than its factorization.

403342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10083562 (or 10083558 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 403342040 is about 20083.3772060378. The cubic root of 403342040 is about 738.8526412412.

Adding to 403342040 its reverse (40243304), we get a palindrome (443585344).

The spelling of 403342040 in words is "four hundred three million, three hundred forty-two thousand, forty".