420702560 has 48 divisors (see below), whose sum is σ = 1046228400. Its totient is φ = 159422976.

The previous prime is 420702551. The next prime is 420702563. The reversal of 420702560 is 65207024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420702563) 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, 66155 + ... + 72234.

It is an arithmetic number, because the mean of its divisors is an integer number (21796425).

Almost surely, 2^420702560 is an apocalyptic number.

420702560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420702560 is an abundant number, since it is smaller than the sum of its proper divisors (625525840).

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

420702560 is a wasteful number, since it uses less digits than its factorization.

420702560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138423 (or 138415 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 420702560 is about 20511.0350787082. The cubic root of 420702560 is about 749.3045761209.

Adding to 420702560 its reverse (65207024), we get a palindrome (485909584).

The spelling of 420702560 in words is "four hundred twenty million, seven hundred two thousand, five hundred sixty".