420411540 has 48 divisors (see below), whose sum is σ = 1205870400. Its totient is φ = 109374720.

The previous prime is 420411493. The next prime is 420411571. The reversal of 420411540 is 45114024.

It is a happy number.

It is a congruent number.

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, 82990 + ... + 87909.

It is an arithmetic number, because the mean of its divisors is an integer number (25122300).

Almost surely, 2^420411540 is an apocalyptic number.

It is an amenable number.

420411540 is an abundant number, since it is smaller than the sum of its proper divisors (785458860).

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

420411540 is a wasteful number, since it uses less digits than its factorization.

420411540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170952 (or 170950 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 420411540 is about 20503.9396214484. The cubic root of 420411540 is about 749.1317597107.

Adding to 420411540 its reverse (45114024), we get a palindrome (465525564).

The spelling of 420411540 in words is "four hundred twenty million, four hundred eleven thousand, five hundred forty".