428084732 has 6 divisors (see below), whose sum is σ = 749148288. Its totient is φ = 214042364.

The previous prime is 428084711. The next prime is 428084759. The reversal of 428084732 is 237480824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53510588 + ... + 53510595.

It is an arithmetic number, because the mean of its divisors is an integer number (124858048).

Almost surely, 2^428084732 is an apocalyptic number.

It is an amenable number.

428084732 is a deficient number, since it is larger than the sum of its proper divisors (321063556).

428084732 is a wasteful number, since it uses less digits than its factorization.

428084732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107021187 (or 107021185 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 428084732 is about 20690.2086021384. The cubic root of 428084732 is about 753.6619324202.

The spelling of 428084732 in words is "four hundred twenty-eight million, eighty-four thousand, seven hundred thirty-two".