8040549 has 16 divisors (see below), whose sum is σ = 11773440. Its totient is φ = 4840560.

The previous prime is 8040533. The next prime is 8040559. The reversal of 8040549 is 9450408.

It is not a de Polignac number, because 8040549 - 2⁴ = 8040533 is a prime.

8040549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4782 + ... + 6240.

It is an arithmetic number, because the mean of its divisors is an integer number (735840).

Almost surely, 2^8040549 is an apocalyptic number.

It is an amenable number.

8040549 is a deficient number, since it is larger than the sum of its proper divisors (3732891).

8040549 is a wasteful number, since it uses less digits than its factorization.

8040549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 8040549 is about 2835.5861827848. The cubic root of 8040549 is about 200.3373390253.

The spelling of 8040549 in words is "eight million, forty thousand, five hundred forty-nine".