420650824 has 32 divisors (see below), whose sum is σ = 876666240. Its totient is φ = 187595200.

The previous prime is 420650819. The next prime is 420650827. The reversal of 420650824 is 428056024.

It is not an unprimeable number, because it can be changed into a prime (420650827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40432 + ... + 49759.

It is an arithmetic number, because the mean of its divisors is an integer number (27395820).

Almost surely, 2^420650824 is an apocalyptic number.

420650824 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420650824 is an abundant number, since it is smaller than the sum of its proper divisors (456015416).

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

420650824 is a wasteful number, since it uses less digits than its factorization.

420650824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90261 (or 90257 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 420650824 is about 20509.7738651600. The cubic root of 420650824 is about 749.2738595573.

The spelling of 420650824 in words is "four hundred twenty million, six hundred fifty thousand, eight hundred twenty-four".