40011252 has 12 divisors (see below), whose sum is σ = 93359616. Its totient is φ = 13337080.

The previous prime is 40011233. The next prime is 40011281. The reversal of 40011252 is 25211004.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1667124 + ... + 1667147.

It is an arithmetic number, because the mean of its divisors is an integer number (7779968).

Almost surely, 2^40011252 is an apocalyptic number.

It is an amenable number.

40011252 is an abundant number, since it is smaller than the sum of its proper divisors (53348364).

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

40011252 is a wasteful number, since it uses less digits than its factorization.

40011252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334278 (or 3334276 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40011252 is about 6325.4448064938. Note that the first 3 decimals coincide. The cubic root of 40011252 is about 342.0272540778.

Adding to 40011252 its reverse (25211004), we get a palindrome (65222256).

It can be divided in two parts, 4001 and 1252, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 40011252 in words is "forty million, eleven thousand, two hundred fifty-two".