40421500 has 48 divisors (see below), whose sum is σ = 100900800. Its totient is φ = 13857600.

The previous prime is 40421483. The next prime is 40421503. The reversal of 40421500 is 512404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275 + ... + 9274.

It is an arithmetic number, because the mean of its divisors is an integer number (2102100).

Almost surely, 2^40421500 is an apocalyptic number.

It is an amenable number.

40421500 is an abundant number, since it is smaller than the sum of its proper divisors (60479300).

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

40421500 is a wasteful number, since it uses less digits than its factorization.

40421500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11575 (or 11563 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40421500 is about 6357.7904967056. The cubic root of 40421500 is about 343.1922525478.

Adding to 40421500 its reverse (512404), we get a palindrome (40933904).

It can be divided in two parts, 404 and 21500, that added together give a square (21904 = 148²).

The spelling of 40421500 in words is "forty million, four hundred twenty-one thousand, five hundred".