428155662 has 32 divisors (see below), whose sum is σ = 935297280. Its totient is φ = 129585920.

The previous prime is 428155621. The next prime is 428155669. The reversal of 428155662 is 266551824.

It is a self number, because there is not a number n which added to its sum of digits gives 428155662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428155669) 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, 57823 + ... + 64805.

It is an arithmetic number, because the mean of its divisors is an integer number (29228040).

Almost surely, 2^428155662 is an apocalyptic number.

428155662 is an abundant number, since it is smaller than the sum of its proper divisors (507141618).

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

428155662 is a wasteful number, since it uses less digits than its factorization.

428155662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928.

The product of its digits is 115200, while the sum is 39.

The square root of 428155662 is about 20691.9226269576. The cubic root of 428155662 is about 753.7035552460.

The spelling of 428155662 in words is "four hundred twenty-eight million, one hundred fifty-five thousand, six hundred sixty-two".