40437049 has 8 divisors (see below), whose sum is σ = 42021000. Its totient is φ = 38865792.

The previous prime is 40437043. The next prime is 40437091. The reversal of 40437049 is 94073404.

It can be written as a sum of positive squares in 4 ways, for example, as 9966649 + 30470400 = 3157^2 + 5520^2 .

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 40437049 - 2⁵ = 40437017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40437049.

It is not an unprimeable number, because it can be changed into a prime (40437043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3597 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (5252625).

Almost surely, 2^40437049 is an apocalyptic number.

It is an amenable number.

40437049 is a deficient number, since it is larger than the sum of its proper divisors (1583951).

40437049 is a wasteful number, since it uses less digits than its factorization.

40437049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40437049 is about 6359.0132096104. The cubic root of 40437049 is about 343.2362523354.

The spelling of 40437049 in words is "forty million, four hundred thirty-seven thousand, forty-nine".