40913249 has 8 divisors (see below), whose sum is σ = 44783592. Its totient is φ = 37146240.

The previous prime is 40913239. The next prime is 40913263. The reversal of 40913249 is 94231904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2560000 + 38353249 = 1600^2 + 6193^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40913249 - 2⁴ = 40913233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40913219) 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, 25004 + ... + 26589.

It is an arithmetic number, because the mean of its divisors is an integer number (5597949).

Almost surely, 2^40913249 is an apocalyptic number.

It is an amenable number.

40913249 is a deficient number, since it is larger than the sum of its proper divisors (3870343).

40913249 is a wasteful number, since it uses less digits than its factorization.

40913249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51667.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40913249 is about 6396.3465353278. The cubic root of 40913249 is about 344.5783520701.

The spelling of 40913249 in words is "forty million, nine hundred thirteen thousand, two hundred forty-nine".