421116040 has 32 divisors (see below), whose sum is σ = 963576000. Its totient is φ = 165590464.

The previous prime is 421116029. The next prime is 421116041. The reversal of 421116040 is 40611124.

It is a junction number, because it is equal to n+sod(n) for n = 421115999 and 421116017.

It is not an unprimeable number, because it can be changed into a prime (421116041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86860 + ... + 91579.

It is an arithmetic number, because the mean of its divisors is an integer number (30111750).

Almost surely, 2^421116040 is an apocalyptic number.

421116040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421116040 is an abundant number, since it is smaller than the sum of its proper divisors (542459960).

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

421116040 is a wasteful number, since it uses less digits than its factorization.

421116040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178509 (or 178505 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 421116040 is about 20521.1120556368. The cubic root of 421116040 is about 749.5499759511.

Adding to 421116040 its reverse (40611124), we get a palindrome (461727164).

The spelling of 421116040 in words is "four hundred twenty-one million, one hundred sixteen thousand, forty".