428430389524 has 24 divisors (see below), whose sum is σ = 756862662528. Its totient is φ = 212184456960.

The previous prime is 428430389509. The next prime is 428430389539. The reversal of 428430389524 is 425983034824.

It is an interprime number because it is at equal distance from previous prime (428430389509) and next prime (428430389539).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3292117 + ... + 3419779.

It is an arithmetic number, because the mean of its divisors is an integer number (31535944272).

Almost surely, 2^428430389524 is an apocalyptic number.

It is an amenable number.

428430389524 is a deficient number, since it is larger than the sum of its proper divisors (328432273004).

428430389524 is a wasteful number, since it uses less digits than its factorization.

428430389524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135615 (or 135613 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 428430389524 in words is "four hundred twenty-eight billion, four hundred thirty million, three hundred eighty-nine thousand, five hundred twenty-four".