40510040 has 16 divisors (see below), whose sum is σ = 91147680. Its totient is φ = 16204000.

The previous prime is 40510037. The next prime is 40510051. The reversal of 40510040 is 4001504.

It is a junction number, because it is equal to n+sod(n) for n = 40509997 and 40510024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506336 + ... + 506415.

It is an arithmetic number, because the mean of its divisors is an integer number (5696730).

Almost surely, 2^40510040 is an apocalyptic number.

40510040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40510040 is an abundant number, since it is smaller than the sum of its proper divisors (50637640).

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

40510040 is a wasteful number, since it uses less digits than its factorization.

40510040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012762 (or 1012758 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 40510040 is about 6364.7497986959. The cubic root of 40510040 is about 343.4426480288.

Adding to 40510040 its reverse (4001504), we get a palindrome (44511544).

The spelling of 40510040 in words is "forty million, five hundred ten thousand, forty".