41400421 has 4 divisors (see below), whose sum is σ = 41483232. Its totient is φ = 41317612.

The previous prime is 41400419. The next prime is 41400427. The reversal of 41400421 is 12400414.

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 41400421 - 2¹ = 41400419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41400395 and 41400404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41400427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40651 + ... + 41656.

It is an arithmetic number, because the mean of its divisors is an integer number (10370808).

Almost surely, 2^41400421 is an apocalyptic number.

It is an amenable number.

41400421 is a deficient number, since it is larger than the sum of its proper divisors (82811).

41400421 is an equidigital number, since it uses as much as digits as its factorization.

41400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82810.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 41400421 is about 6434.3158921520. The cubic root of 41400421 is about 345.9406410249.

Adding to 41400421 its reverse (12400414), we get a palindrome (53800835).

The spelling of 41400421 in words is "forty-one million, four hundred thousand, four hundred twenty-one".