40212552 has 32 divisors (see below), whose sum is σ = 100706400. Its totient is φ = 13380864.

The previous prime is 40212547. The next prime is 40212553. The reversal of 40212552 is 25521204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40212553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17824 + ... + 19952.

It is an arithmetic number, because the mean of its divisors is an integer number (3147075).

Almost surely, 2^40212552 is an apocalyptic number.

It is an amenable number.

40212552 is an abundant number, since it is smaller than the sum of its proper divisors (60493848).

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

40212552 is a wasteful number, since it uses less digits than its factorization.

40212552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40212552 is about 6341.3367675909. The cubic root of 40212552 is about 342.5998841999.

Adding to 40212552 its reverse (25521204), we get a palindrome (65733756).

The spelling of 40212552 in words is "forty million, two hundred twelve thousand, five hundred fifty-two".