40003075 has 48 divisors (see below), whose sum is σ = 61067520. Its totient is φ = 25384320.

The previous prime is 40003069. The next prime is 40003079. The reversal of 40003075 is 57030004.

It is not a de Polignac number, because 40003075 - 2⁵ = 40003043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

40003075 is a modest number, since divided by 3075 gives 400 as remainder.

It is not an unprimeable number, because it can be changed into a prime (40003079) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176112 + ... + 176338.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^40003075 is an apocalyptic number.

40003075 is a deficient number, since it is larger than the sum of its proper divisors (21064445).

40003075 is a wasteful number, since it uses less digits than its factorization.

40003075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 40003075 is about 6324.7984157600. The cubic root of 40003075 is about 342.0039527375.

Adding to 40003075 its reverse (57030004), we get a palindrome (97033079).

The spelling of 40003075 in words is "forty million, three thousand, seventy-five".