40554489 has 4 divisors (see below), whose sum is σ = 54072656. Its totient is φ = 27036324.

The previous prime is 40554473. The next prime is 40554517. The reversal of 40554489 is 98445504.

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 40554489 - 2⁴ = 40554473 is a prime.

It is a super-2 number, since 2×40554489² = 3289333156102242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40554389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6759079 + ... + 6759084.

It is an arithmetic number, because the mean of its divisors is an integer number (13518164).

Almost surely, 2^40554489 is an apocalyptic number.

It is an amenable number.

40554489 is a deficient number, since it is larger than the sum of its proper divisors (13518167).

40554489 is a wasteful number, since it uses less digits than its factorization.

40554489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13518166.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 40554489 is about 6368.2406518598. The cubic root of 40554489 is about 343.5682144507.

The spelling of 40554489 in words is "forty million, five hundred fifty-four thousand, four hundred eighty-nine".