428504376 has 16 divisors (see below), whose sum is σ = 1071261000. Its totient is φ = 142834784.

The previous prime is 428504347. The next prime is 428504381. The reversal of 428504376 is 673405824.

It is a happy number.

It is a super-2 number, since 2×428504376² = 367232000502298752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8927151 + ... + 8927198.

Almost surely, 2^428504376 is an apocalyptic number.

It is an amenable number.

428504376 is an abundant number, since it is smaller than the sum of its proper divisors (642756624).

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

428504376 is a wasteful number, since it uses less digits than its factorization.

428504376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17854358 (or 17854354 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 428504376 is about 20700.3472434643. The cubic root of 428504376 is about 753.9081192114.

The spelling of 428504376 in words is "four hundred twenty-eight million, five hundred four thousand, three hundred seventy-six".