40308044 has 24 divisors (see below), whose sum is σ = 84860160. Its totient is φ = 16365456.

The previous prime is 40308041. The next prime is 40308053. The reversal of 40308044 is 44080304.

It is a super-2 number, since 2×40308044² = 3249476822211872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40308041) 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, 37352 + ... + 38415.

It is an arithmetic number, because the mean of its divisors is an integer number (3535840).

Almost surely, 2^40308044 is an apocalyptic number.

It is an amenable number.

40308044 is an abundant number, since it is smaller than the sum of its proper divisors (44552116).

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

40308044 is a wasteful number, since it uses less digits than its factorization.

40308044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75797 (or 75795 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40308044 is about 6348.8616302452. The cubic root of 40308044 is about 342.8708583468.

Adding to 40308044 its reverse (44080304), we get a palindrome (84388348).

The spelling of 40308044 in words is "forty million, three hundred eight thousand, forty-four".