40506104 has 32 divisors (see below), whose sum is σ = 82140480. Its totient is φ = 18653184.

The previous prime is 40506101. The next prime is 40506143. The reversal of 40506104 is 40160504.

It is a happy number.

It is a super-2 number, since 2×40506104² = 3281488922517632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40506101) 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, 3224 + ... + 9560.

It is an arithmetic number, because the mean of its divisors is an integer number (2566890).

Almost surely, 2^40506104 is an apocalyptic number.

It is an amenable number.

40506104 is an abundant number, since it is smaller than the sum of its proper divisors (41634376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40506104 is a wasteful number, since it uses less digits than its factorization.

40506104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407 (or 6403 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40506104 is about 6364.4405881428. The cubic root of 40506104 is about 343.4315245802.

Adding to 40506104 its reverse (40160504), we get a palindrome (80666608).

The spelling of 40506104 in words is "forty million, five hundred six thousand, one hundred four".