40520460 has 24 divisors (see below), whose sum is σ = 113457456. Its totient is φ = 10805440.

The previous prime is 40520449. The next prime is 40520477. The reversal of 40520460 is 6402504.

It is a happy number.

It is a super-2 number, since 2×40520460² = 3283815357223200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 337611 + ... + 337730.

It is an arithmetic number, because the mean of its divisors is an integer number (4727394).

Almost surely, 2^40520460 is an apocalyptic number.

It is an amenable number.

40520460 is an abundant number, since it is smaller than the sum of its proper divisors (72936996).

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

40520460 is a wasteful number, since it uses less digits than its factorization.

40520460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675353 (or 675351 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40520460 is about 6365.5683171261. The cubic root of 40520460 is about 343.4720922982.

Adding to 40520460 its reverse (6402504), we get a palindrome (46922964).

The spelling of 40520460 in words is "forty million, five hundred twenty thousand, four hundred sixty".