428985045 has 64 divisors (see below), whose sum is σ = 778567680. Its totient is φ = 224078400.

The previous prime is 428985031. The next prime is 428985079. The reversal of 428985045 is 540589824.

It is not a de Polignac number, because 428985045 - 2⁶ = 428984981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2245900 + ... + 2246090.

It is an arithmetic number, because the mean of its divisors is an integer number (12165120).

Almost surely, 2^428985045 is an apocalyptic number.

428985045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

428985045 is a deficient number, since it is larger than the sum of its proper divisors (349582635).

428985045 is a wasteful number, since it uses less digits than its factorization.

428985045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 428985045 is about 20711.9541569597. The cubic root of 428985045 is about 754.1899092919.

The spelling of 428985045 in words is "four hundred twenty-eight million, nine hundred eighty-five thousand, forty-five".