428803156 has 24 divisors (see below), whose sum is σ = 758265984. Its totient is φ = 212167200.

The previous prime is 428803139. The next prime is 428803183. The reversal of 428803156 is 651308824.

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 in 7 ways as a sum of consecutive naturals, for example, 175761 + ... + 178183.

It is an arithmetic number, because the mean of its divisors is an integer number (31594416).

Almost surely, 2^428803156 is an apocalyptic number.

It is an amenable number.

428803156 is a deficient number, since it is larger than the sum of its proper divisors (329462828).

428803156 is a wasteful number, since it uses less digits than its factorization.

428803156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 428803156 is about 20707.5627730547. The cubic root of 428803156 is about 754.0833024358.

The spelling of 428803156 in words is "four hundred twenty-eight million, eight hundred three thousand, one hundred fifty-six".