40202303421 has 8 divisors (see below), whose sum is σ = 61260652864. Its totient is φ = 22972744800.

The previous prime is 40202303399. The next prime is 40202303437. The reversal of 40202303421 is 12430320204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40202303421 - 2⁵ = 40202303389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1914395401 = 40202303421 / (4 + 0 + 2 + 0 + 2 + 3 + 0 + 3 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957197680 + ... + 957197721.

It is an arithmetic number, because the mean of its divisors is an integer number (7657581608).

Almost surely, 2^40202303421 is an apocalyptic number.

It is an amenable number.

40202303421 is a deficient number, since it is larger than the sum of its proper divisors (21058349443).

40202303421 is a wasteful number, since it uses less digits than its factorization.

40202303421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914395411.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40202303421 its reverse (12430320204), we get a palindrome (52632623625).

The spelling of 40202303421 in words is "forty billion, two hundred two million, three hundred three thousand, four hundred twenty-one".