428013623620 has 48 divisors (see below), whose sum is σ = 984355763328. Its totient is φ = 155035688960.

The previous prime is 428013623581. The next prime is 428013623629. The reversal of 428013623620 is 26326310824.

It is a self number, because there is not a number n which added to its sum of digits gives 428013623620.

It is not an unprimeable number, because it can be changed into a prime (428013623629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3728512 + ... + 3841591.

It is an arithmetic number, because the mean of its divisors is an integer number (20507411736).

Almost surely, 2^428013623620 is an apocalyptic number.

It is an amenable number.

428013623620 is an abundant number, since it is smaller than the sum of its proper divisors (556342139708).

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

428013623620 is a wasteful number, since it uses less digits than its factorization.

428013623620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570380 (or 7570378 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 428013623620 in words is "four hundred twenty-eight billion, thirteen million, six hundred twenty-three thousand, six hundred twenty".