22740141 has 4 divisors (see below), whose sum is σ = 30320192. Its totient is φ = 15160092.

The previous prime is 22740073. The next prime is 22740149. The reversal of 22740141 is 14104722.

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 22740141 - 2²² = 18545837 is a prime.

It is a super-2 number, since 2×22740141² = 1034228025399762, 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 (22740149) 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, 3790021 + ... + 3790026.

It is an arithmetic number, because the mean of its divisors is an integer number (7580048).

Almost surely, 2^22740141 is an apocalyptic number.

It is an amenable number.

22740141 is a deficient number, since it is larger than the sum of its proper divisors (7580051).

22740141 is an equidigital number, since it uses as much as digits as its factorization.

22740141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580050.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22740141 is about 4768.6623910694. The cubic root of 22740141 is about 283.3116180205.

Adding to 22740141 its reverse (14104722), we get a palindrome (36844863).

The spelling of 22740141 in words is "twenty-two million, seven hundred forty thousand, one hundred forty-one".