420739650 has 48 divisors (see below), whose sum is σ = 1159375200. Its totient is φ = 112196880.

The previous prime is 420739619. The next prime is 420739651. The reversal of 420739650 is 56937024.

It is not an unprimeable number, because it can be changed into a prime (420739651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154480 + ... + 157179.

It is an arithmetic number, because the mean of its divisors is an integer number (24153650).

Almost surely, 2^420739650 is an apocalyptic number.

420739650 is an abundant number, since it is smaller than the sum of its proper divisors (738635550).

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

420739650 is a wasteful number, since it uses less digits than its factorization.

420739650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311680 (or 311669 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 420739650 is about 20511.9392062282. The cubic root of 420739650 is about 749.3265955496.

The spelling of 420739650 in words is "four hundred twenty million, seven hundred thirty-nine thousand, six hundred fifty".