40212524 has 12 divisors (see below), whose sum is σ = 76769448. Its totient is φ = 18278400.

The previous prime is 40212521. The next prime is 40212547. The reversal of 40212524 is 42521204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40212496 and 40212505.

It is not an unprimeable number, because it can be changed into a prime (40212521) 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 in 3 ways as a sum of consecutive naturals, for example, 456917 + ... + 457004.

It is an arithmetic number, because the mean of its divisors is an integer number (6397454).

Almost surely, 2^40212524 is an apocalyptic number.

40212524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40212524 is a deficient number, since it is larger than the sum of its proper divisors (36556924).

40212524 is a wasteful number, since it uses less digits than its factorization.

40212524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913936 (or 913934 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40212524 is about 6341.3345598541. The cubic root of 40212524 is about 342.5998046825.

Adding to 40212524 its reverse (42521204), we get a palindrome (82733728).

The spelling of 40212524 in words is "forty million, two hundred twelve thousand, five hundred twenty-four".