40992149 has 4 divisors (see below), whose sum is σ = 44718720. Its totient is φ = 37265580.

The previous prime is 40992113. The next prime is 40992157. The reversal of 40992149 is 94129904.

It is a happy number.

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 40992149 - 2¹² = 40988053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40992179) 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, 1863269 + ... + 1863290.

It is an arithmetic number, because the mean of its divisors is an integer number (11179680).

Almost surely, 2^40992149 is an apocalyptic number.

It is an amenable number.

40992149 is a deficient number, since it is larger than the sum of its proper divisors (3726571).

40992149 is a wasteful number, since it uses less digits than its factorization.

40992149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726570.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 40992149 is about 6402.5111479794. The cubic root of 40992149 is about 344.7997129149.

The spelling of 40992149 in words is "forty million, nine hundred ninety-two thousand, one hundred forty-nine".