40434549 has 4 divisors (see below), whose sum is σ = 53912736. Its totient is φ = 26956364.

The previous prime is 40434539. The next prime is 40434553. The reversal of 40434549 is 94543404.

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 40434549 - 2⁴ = 40434533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434539) 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, 6739089 + ... + 6739094.

It is an arithmetic number, because the mean of its divisors is an integer number (13478184).

Almost surely, 2^40434549 is an apocalyptic number.

It is an amenable number.

40434549 is a deficient number, since it is larger than the sum of its proper divisors (13478187).

40434549 is a wasteful number, since it uses less digits than its factorization.

40434549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13478186.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40434549 is about 6358.8166351924. The cubic root of 40434549 is about 343.2291787206.

The spelling of 40434549 in words is "forty million, four hundred thirty-four thousand, five hundred forty-nine".