420901740 has 72 divisors (see below), whose sum is σ = 1459130400. Its totient is φ = 96205824.

The previous prime is 420901717. The next prime is 420901757. The reversal of 420901740 is 47109024.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165765 + ... + 168284.

It is an arithmetic number, because the mean of its divisors is an integer number (20265700).

Almost surely, 2^420901740 is an apocalyptic number.

It is an amenable number.

420901740 is an abundant number, since it is smaller than the sum of its proper divisors (1038228660).

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

420901740 is a wasteful number, since it uses less digits than its factorization.

420901740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334071 (or 334066 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 420901740 is about 20515.8899392642. The cubic root of 420901740 is about 749.4228092484.

The spelling of 420901740 in words is "four hundred twenty million, nine hundred one thousand, seven hundred forty".