40152040 has 32 divisors (see below), whose sum is σ = 90686880. Its totient is φ = 15999552.

The previous prime is 40152001. The next prime is 40152041. The reversal of 40152040 is 4025104.

40152040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40152040² = 3224372632323200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40152041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9547 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (2833965).

Almost surely, 2^40152040 is an apocalyptic number.

40152040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40152040 is an abundant number, since it is smaller than the sum of its proper divisors (50534840).

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

40152040 is a wasteful number, since it uses less digits than its factorization.

40152040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841 (or 3837 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40152040 is about 6336.5637375473. The cubic root of 40152040 is about 342.4279493955.

Adding to 40152040 its reverse (4025104), we get a palindrome (44177144).

It can be divided in two parts, 401 and 52040, that added together give a square (52441 = 229²).

The spelling of 40152040 in words is "forty million, one hundred fifty-two thousand, forty".