428346900 has 72 divisors (see below), whose sum is σ = 1377064640. Its totient is φ = 114225120.

The previous prime is 428346899. The next prime is 428346911. The reversal of 428346900 is 9643824.

It is a happy number.

It is a super-2 number, since 2×428346900² = 366962133479220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76624 + ... + 82023.

Almost surely, 2^428346900 is an apocalyptic number.

It is an amenable number.

428346900 is an abundant number, since it is smaller than the sum of its proper divisors (948717740).

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

428346900 is a wasteful number, since it uses less digits than its factorization.

428346900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158670 (or 158657 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 428346900 is about 20696.5431896247. The cubic root of 428346900 is about 753.8157537747.

The spelling of 428346900 in words is "four hundred twenty-eight million, three hundred forty-six thousand, nine hundred".