420234340 has 24 divisors (see below), whose sum is σ = 887072760. Its totient is φ = 167221248.

The previous prime is 420234337. The next prime is 420234377. The reversal of 420234340 is 43432024.

It can be written as a sum of positive squares in 4 ways, for example, as 21752896 + 398481444 = 4664^2 + 19962^2 .

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, 50575 + ... + 58294.

It is an arithmetic number, because the mean of its divisors is an integer number (36961365).

Almost surely, 2^420234340 is an apocalyptic number.

It is an amenable number.

420234340 is an abundant number, since it is smaller than the sum of its proper divisors (466838420).

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

420234340 is a wasteful number, since it uses less digits than its factorization.

420234340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109071 (or 109069 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 420234340 is about 20499.6180452222. The cubic root of 420234340 is about 749.0264939651.

Adding to 420234340 its reverse (43432024), we get a palindrome (463666364).

The spelling of 420234340 in words is "four hundred twenty million, two hundred thirty-four thousand, three hundred forty".