40003100 has 18 divisors (see below), whose sum is σ = 86806944. Its totient is φ = 16001200.

The previous prime is 40003081. The next prime is 40003111. The reversal of 40003100 is 130004.

It is a super-2 number, since 2×40003100² = 3200496019220000, which contains 22 as substring.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 199916 + ... + 200115.

It is an arithmetic number, because the mean of its divisors is an integer number (4822608).

Almost surely, 2^40003100 is an apocalyptic number.

It is an amenable number.

40003100 is an abundant number, since it is smaller than the sum of its proper divisors (46803844).

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

40003100 is a wasteful number, since it uses less digits than its factorization.

40003100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400045 (or 400038 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 40003100 is about 6324.8003921072. The cubic root of 40003100 is about 342.0040239828.

Adding to 40003100 its reverse (130004), we get a palindrome (40133104).

The spelling of 40003100 in words is "forty million, three thousand, one hundred".