428311260 has 384 divisors, whose sum is σ = 1576592640. Its totient is φ = 95551488.

The previous prime is 428311259. The next prime is 428311321. The reversal of 428311260 is 62113824.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4415532 + ... + 4415628.

It is an arithmetic number, because the mean of its divisors is an integer number (4105710).

Almost surely, 2^428311260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428311260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788296320).

428311260 is an abundant number, since it is smaller than the sum of its proper divisors (1148281380).

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

428311260 is a wasteful number, since it uses less digits than its factorization.

428311260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 428311260 is about 20695.6821583634. The cubic root of 428311260 is about 753.7948464691.

The spelling of 428311260 in words is "four hundred twenty-eight million, three hundred eleven thousand, two hundred sixty".