40422089 has 4 divisors (see below), whose sum is σ = 40571520. Its totient is φ = 40272660.

The previous prime is 40422059. The next prime is 40422091. The reversal of 40422089 is 98022404.

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 40422089 - 2¹⁶ = 40356553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40422029) 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, 74309 + ... + 74850.

It is an arithmetic number, because the mean of its divisors is an integer number (10142880).

Almost surely, 2^40422089 is an apocalyptic number.

It is an amenable number.

40422089 is a deficient number, since it is larger than the sum of its proper divisors (149431).

40422089 is a wasteful number, since it uses less digits than its factorization.

40422089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149430.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40422089 is about 6357.8368176605. The cubic root of 40422089 is about 343.1939194763.

The spelling of 40422089 in words is "forty million, four hundred twenty-two thousand, eighty-nine".