40920004 has 24 divisors (see below), whose sum is σ = 74301920. Its totient is φ = 19704384.

The previous prime is 40920001. The next prime is 40920007. The reversal of 40920004 is 40002904.

It is an interprime number because it is at equal distance from previous prime (40920001) and next prime (40920007).

It is not an unprimeable number, because it can be changed into a prime (40920001) 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, 10927 + ... + 14185.

Almost surely, 2^40920004 is an apocalyptic number.

It is an amenable number.

40920004 is a deficient number, since it is larger than the sum of its proper divisors (33381916).

40920004 is a wasteful number, since it uses less digits than its factorization.

40920004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379 (or 3377 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40920004 is about 6396.8745493405. The cubic root of 40920004 is about 344.5973149468.

Adding to 40920004 its reverse (40002904), we get a palindrome (80922908).

The spelling of 40920004 in words is "forty million, nine hundred twenty thousand, four".