40141389 has 4 divisors (see below), whose sum is σ = 53521856. Its totient is φ = 26760924.

The previous prime is 40141379. The next prime is 40141397. The reversal of 40141389 is 98314104.

It is a happy number.

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 not a de Polignac number, because 40141389 - 2⁷ = 40141261 is a prime.

It is a super-2 number, since 2×40141389² = 3222662221698642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40141379) 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, 6690229 + ... + 6690234.

It is an arithmetic number, because the mean of its divisors is an integer number (13380464).

Almost surely, 2^40141389 is an apocalyptic number.

It is an amenable number.

40141389 is a deficient number, since it is larger than the sum of its proper divisors (13380467).

40141389 is a wasteful number, since it uses less digits than its factorization.

40141389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380466.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 40141389 is about 6335.7232420616. The cubic root of 40141389 is about 342.3976684714.

The spelling of 40141389 in words is "forty million, one hundred forty-one thousand, three hundred eighty-nine".