40421152 has 24 divisors (see below), whose sum is σ = 80704512. Its totient is φ = 19924800.

The previous prime is 40421141. The next prime is 40421153. The reversal of 40421152 is 25112404.

It is not an unprimeable number, because it can be changed into a prime (40421153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6624 + ... + 11167.

It is an arithmetic number, because the mean of its divisors is an integer number (3362688).

Almost surely, 2^40421152 is an apocalyptic number.

It is an amenable number.

40421152 is a deficient number, since it is larger than the sum of its proper divisors (40283360).

40421152 is a wasteful number, since it uses less digits than its factorization.

40421152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17872 (or 17864 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40421152 is about 6357.7631286483. The cubic root of 40421152 is about 343.1912676656.

Adding to 40421152 its reverse (25112404), we get a palindrome (65533556).

The spelling of 40421152 in words is "forty million, four hundred twenty-one thousand, one hundred fifty-two".