40020152 has 8 divisors (see below), whose sum is σ = 75037800. Its totient is φ = 20010072.

The previous prime is 40020151. The next prime is 40020157. The reversal of 40020152 is 25102004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40020152² = 3203225132206208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40020151) by changing a digit.

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 as a sum of consecutive naturals, namely, 2501252 + ... + 2501267.

It is an arithmetic number, because the mean of its divisors is an integer number (9379725).

Almost surely, 2^40020152 is an apocalyptic number.

It is an amenable number.

40020152 is a deficient number, since it is larger than the sum of its proper divisors (35017648).

40020152 is a wasteful number, since it uses less digits than its factorization.

40020152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002525 (or 5002521 counting only the distinct ones).

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

The square root of 40020152 is about 6326.1482752145. The cubic root of 40020152 is about 342.0526120854.

Adding to 40020152 its reverse (25102004), we get a palindrome (65122156).

The spelling of 40020152 in words is "forty million, twenty thousand, one hundred fifty-two".