40041020 has 24 divisors (see below), whose sum is σ = 84206304. Its totient is φ = 15993536.

The previous prime is 40041007. The next prime is 40041073. The reversal of 40041020 is 2014004.

It is a junction number, because it is equal to n+sod(n) for n = 40040992 and 40041010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23642 + ... + 25278.

It is an arithmetic number, because the mean of its divisors is an integer number (3508596).

Almost surely, 2^40041020 is an apocalyptic number.

It is an amenable number.

40041020 is an abundant number, since it is smaller than the sum of its proper divisors (44165284).

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

40041020 is a wasteful number, since it uses less digits than its factorization.

40041020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 40041020 is about 6327.7974051008. The cubic root of 40041020 is about 342.1120547515.

Adding to 40041020 its reverse (2014004), we get a palindrome (42055024).

The spelling of 40041020 in words is "forty million, forty-one thousand, twenty".