421112240 has 40 divisors (see below), whose sum is σ = 983441520. Its totient is φ = 167695616.

The previous prime is 421112227. The next prime is 421112249. The reversal of 421112240 is 42211124.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (421112249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6566 + ... + 29754.

It is an arithmetic number, because the mean of its divisors is an integer number (24586038).

Almost surely, 2^421112240 is an apocalyptic number.

421112240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421112240 is an abundant number, since it is smaller than the sum of its proper divisors (562329280).

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

421112240 is a wasteful number, since it uses less digits than its factorization.

421112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23429 (or 23423 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 421112240 is about 20521.0194678530. The cubic root of 421112240 is about 749.5477213876.

Adding to 421112240 its reverse (42211124), we get a palindrome (463323364).

The spelling of 421112240 in words is "four hundred twenty-one million, one hundred twelve thousand, two hundred forty".