428637048 has 64 divisors (see below), whose sum is σ = 1296725760. Its totient is φ = 115262976.

The previous prime is 428637047. The next prime is 428637049. The reversal of 428637048 is 840736824.

It is an interprime number because it is at equal distance from previous prime (428637047) and next prime (428637049).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428637047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72186 + ... + 77897.

It is an arithmetic number, because the mean of its divisors is an integer number (20261340).

Almost surely, 2^428637048 is an apocalyptic number.

It is an amenable number.

428637048 is an abundant number, since it is smaller than the sum of its proper divisors (868088712).

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

428637048 is a wasteful number, since it uses less digits than its factorization.

428637048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150116 (or 150112 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 428637048 is about 20703.5515793788. The cubic root of 428637048 is about 753.9859186323.

The spelling of 428637048 in words is "four hundred twenty-eight million, six hundred thirty-seven thousand, forty-eight".