40653549 has 8 divisors (see below), whose sum is σ = 60227520. Its totient is φ = 27102348.

The previous prime is 40653539. The next prime is 40653553. The reversal of 40653549 is 94535604.

It is a happy number.

It is not a de Polignac number, because 40653549 - 2¹³ = 40645357 is a prime.

It is a super-2 number, since 2×40653549² = 3305422092590802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40653539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752817 + ... + 752870.

It is an arithmetic number, because the mean of its divisors is an integer number (7528440).

Almost surely, 2^40653549 is an apocalyptic number.

It is an amenable number.

40653549 is a deficient number, since it is larger than the sum of its proper divisors (19573971).

40653549 is a wasteful number, since it uses less digits than its factorization.

40653549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505696 (or 1505690 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 40653549 is about 6376.0135664849. The cubic root of 40653549 is about 343.8477247661.

The spelling of 40653549 in words is "forty million, six hundred fifty-three thousand, five hundred forty-nine".