264421420 has 24 divisors (see below), whose sum is σ = 574434000. Its totient is φ = 102121152.

The previous prime is 264421393. The next prime is 264421427. The reversal of 264421420 is 24124462.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (264421427) 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, 227370 + ... + 228529.

It is an arithmetic number, because the mean of its divisors is an integer number (23934750).

Almost surely, 2^264421420 is an apocalyptic number.

264421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264421420 is an abundant number, since it is smaller than the sum of its proper divisors (310012580).

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

264421420 is a wasteful number, since it uses less digits than its factorization.

264421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455937 (or 455935 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 264421420 is about 16261.0399421439. The cubic root of 264421420 is about 641.8480277442.

Adding to 264421420 its reverse (24124462), we get a palindrome (288545882).

The spelling of 264421420 in words is "two hundred sixty-four million, four hundred twenty-one thousand, four hundred twenty".