40417442 has 16 divisors (see below), whose sum is σ = 65734200. Its totient is φ = 18527232.

The previous prime is 40417439. The next prime is 40417451. The reversal of 40417442 is 24471404.

It can be written as a sum of positive squares in 4 ways, for example, as 22363441 + 18054001 = 4729^2 + 4249^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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, 1343 + ... + 9090.

Almost surely, 2^40417442 is an apocalyptic number.

40417442 is a deficient number, since it is larger than the sum of its proper divisors (25316758).

40417442 is a wasteful number, since it uses less digits than its factorization.

40417442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10597.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 40417442 is about 6357.4713526684. The cubic root of 40417442 is about 343.1807675644.

Adding to 40417442 its reverse (24471404), we get a palindrome (64888846).

The spelling of 40417442 in words is "forty million, four hundred seventeen thousand, four hundred forty-two".