40197252 has 12 divisors (see below), whose sum is σ = 93793616. Its totient is φ = 13399080.

The previous prime is 40197251. The next prime is 40197301. The reversal of 40197252 is 25279104.

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

It is not an unprimeable number, because it can be changed into a prime (40197251) 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, 1674874 + ... + 1674897.

Almost surely, 2^40197252 is an apocalyptic number.

It is an amenable number.

40197252 is an abundant number, since it is smaller than the sum of its proper divisors (53596364).

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

40197252 is a wasteful number, since it uses less digits than its factorization.

40197252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349778 (or 3349776 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40197252 is about 6340.1302825731. The cubic root of 40197252 is about 342.5564280907.

The spelling of 40197252 in words is "forty million, one hundred ninety-seven thousand, two hundred fifty-two".