601440420 has 48 divisors (see below), whose sum is σ = 1924610688. Its totient is φ = 137472000.

The previous prime is 601440391. The next prime is 601440451. The reversal of 601440420 is 24044106.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715581 + ... + 716420.

It is an arithmetic number, because the mean of its divisors is an integer number (40096056).

Almost surely, 2^601440420 is an apocalyptic number.

601440420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

601440420 is an abundant number, since it is smaller than the sum of its proper divisors (1323170268).

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

601440420 is a wasteful number, since it uses less digits than its factorization.

601440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432020 (or 1432018 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 601440420 is about 24524.2822524942. The cubic root of 601440420 is about 844.1070688423.

Adding to 601440420 its reverse (24044106), we get a palindrome (625484526).

The spelling of 601440420 in words is "six hundred one million, four hundred forty thousand, four hundred twenty".