403041421 has 4 divisors (see below), whose sum is σ = 403099744. Its totient is φ = 402983100.

The previous prime is 403041367. The next prime is 403041437. The reversal of 403041421 is 124140304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403041421 - 2⁷ = 403041293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403041721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17145 + ... + 33166.

It is an arithmetic number, because the mean of its divisors is an integer number (100774936).

Almost surely, 2^403041421 is an apocalyptic number.

It is an amenable number.

403041421 is a deficient number, since it is larger than the sum of its proper divisors (58323).

403041421 is an equidigital number, since it uses as much as digits as its factorization.

403041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58322.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 403041421 is about 20075.8915368658. The cubic root of 403041421 is about 738.6690350007.

Adding to 403041421 its reverse (124140304), we get a palindrome (527181725).

It can be divided in two parts, 4030 and 41421, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 403041421 in words is "four hundred three million, forty-one thousand, four hundred twenty-one".