40401041 has 4 divisors (see below), whose sum is σ = 42157632. Its totient is φ = 38644452.

The previous prime is 40401013. The next prime is 40401043. The reversal of 40401041 is 14010404.

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 40401041 - 2⁶ = 40400977 is a prime.

It is a super-2 number, since 2×40401041² = 3264488227767362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40401043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878261 + ... + 878306.

It is an arithmetic number, because the mean of its divisors is an integer number (10539408).

Almost surely, 2^40401041 is an apocalyptic number.

It is an amenable number.

40401041 is a deficient number, since it is larger than the sum of its proper divisors (1756591).

40401041 is a wasteful number, since it uses less digits than its factorization.

40401041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756590.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40401041 is about 6356.1813221462. The cubic root of 40401041 is about 343.1343414919.

Adding to 40401041 its reverse (14010404), we get a palindrome (54411445).

The spelling of 40401041 in words is "forty million, four hundred one thousand, forty-one".