420737660 has 24 divisors (see below), whose sum is σ = 1009770720. Its totient is φ = 144252864.

The previous prime is 420737633. The next prime is 420737699. The reversal of 420737660 is 66737024.

It is a super-4 number, since 4×420737660⁴ (a number of 36 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 420737660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502495 + ... + 1502774.

It is an arithmetic number, because the mean of its divisors is an integer number (42073780).

Almost surely, 2^420737660 is an apocalyptic number.

It is an amenable number.

420737660 is an abundant number, since it is smaller than the sum of its proper divisors (589033060).

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

420737660 is a wasteful number, since it uses less digits than its factorization.

420737660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005285 (or 3005283 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 420737660 is about 20511.8906978367. The cubic root of 420737660 is about 749.3254141679.

The spelling of 420737660 in words is "four hundred twenty million, seven hundred thirty-seven thousand, six hundred sixty".