40253964 has 24 divisors (see below), whose sum is σ = 96217968. Its totient is φ = 13090560.

The previous prime is 40253963. The next prime is 40253981. The reversal of 40253964 is 46935204.

It is not an unprimeable number, because it can be changed into a prime (40253963) 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 7 ways as a sum of consecutive naturals, for example, 40417 + ... + 41400.

It is an arithmetic number, because the mean of its divisors is an integer number (4009082).

Almost surely, 2^40253964 is an apocalyptic number.

It is an amenable number.

40253964 is an abundant number, since it is smaller than the sum of its proper divisors (55964004).

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

40253964 is a wasteful number, since it uses less digits than its factorization.

40253964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81865 (or 81863 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 40253964 is about 6344.6011694984. The cubic root of 40253964 is about 342.7174501354.

The spelling of 40253964 in words is "forty million, two hundred fifty-three thousand, nine hundred sixty-four".