40425012 has 36 divisors (see below), whose sum is σ = 102438336. Its totient is φ = 13441680.

The previous prime is 40424999. The next prime is 40425013. The reversal of 40425012 is 21052404.

Added to its reverse (21052404) it gives a triangular number (61477416 = T₁₁₀₈₈).

40425012 is a `hidden beast` number, since 404 + 250 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16533 + ... + 18819.

Almost surely, 2^40425012 is an apocalyptic number.

It is an amenable number.

40425012 is an abundant number, since it is smaller than the sum of its proper divisors (62013324).

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

40425012 is a wasteful number, since it uses less digits than its factorization.

40425012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40425012 is about 6358.0666872879. The cubic root of 40425012 is about 343.2021916172.

Adding to 40425012 its reverse (21052404), we get a palindrome (61477416).

The spelling of 40425012 in words is "forty million, four hundred twenty-five thousand, twelve".