40829449 has 4 divisors (see below), whose sum is σ = 42146560. Its totient is φ = 39512340.

The previous prime is 40829431. The next prime is 40829471. The reversal of 40829449 is 94492804.

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 a cyclic number.

It is not a de Polignac number, because 40829449 - 2⁹ = 40828937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40829479) 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, 658509 + ... + 658570.

It is an arithmetic number, because the mean of its divisors is an integer number (10536640).

Almost surely, 2^40829449 is an apocalyptic number.

It is an amenable number.

40829449 is a deficient number, since it is larger than the sum of its proper divisors (1317111).

40829449 is a wasteful number, since it uses less digits than its factorization.

40829449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317110.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 40829449 is about 6389.7925631432. The cubic root of 40829449 is about 344.3429319735.

It can be divided in two parts, 4082 and 9449, that added together give a palindrome (13531).

The spelling of 40829449 in words is "forty million, eight hundred twenty-nine thousand, four hundred forty-nine".