421135760 has 40 divisors (see below), whose sum is σ = 1030678080. Its totient is φ = 159587712.

The previous prime is 421135753. The next prime is 421135763. The reversal of 421135760 is 67531124.

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 (421135763) 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, 137012 + ... + 140051.

It is an arithmetic number, because the mean of its divisors is an integer number (25766952).

Almost surely, 2^421135760 is an apocalyptic number.

421135760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421135760 is an abundant number, since it is smaller than the sum of its proper divisors (609542320).

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

421135760 is a wasteful number, since it uses less digits than its factorization.

421135760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277095 (or 277089 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 421135760 is about 20521.5925307955. The cubic root of 421135760 is about 749.5616757309.

Adding to 421135760 its reverse (67531124), we get a palindrome (488666884).

The spelling of 421135760 in words is "four hundred twenty-one million, one hundred thirty-five thousand, seven hundred sixty".