41400391 has 4 divisors (see below), whose sum is σ = 43200432. Its totient is φ = 39600352.

The previous prime is 41400383. The next prime is 41400409. The reversal of 41400391 is 19300414.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41400391 - 2³ = 41400383 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41400301) 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, 899986 + ... + 900031.

It is an arithmetic number, because the mean of its divisors is an integer number (10800108).

Almost surely, 2^41400391 is an apocalyptic number.

41400391 is a deficient number, since it is larger than the sum of its proper divisors (1800041).

41400391 is a wasteful number, since it uses less digits than its factorization.

41400391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800040.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 41400391 is about 6434.3135609014. The cubic root of 41400391 is about 345.9405574652.

The spelling of 41400391 in words is "forty-one million, four hundred thousand, three hundred ninety-one".