428604670 has 32 divisors (see below), whose sum is σ = 853298208. Its totient is φ = 153975168.

The previous prime is 428604653. The next prime is 428604689. The reversal of 428604670 is 76406824.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39744 + ... + 49363.

It is an arithmetic number, because the mean of its divisors is an integer number (26665569).

Almost surely, 2^428604670 is an apocalyptic number.

428604670 is a deficient number, since it is larger than the sum of its proper divisors (424693538).

428604670 is a wasteful number, since it uses less digits than its factorization.

428604670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89164.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 428604670 is about 20702.7696214782. The cubic root of 428604670 is about 753.9669335174.

The spelling of 428604670 in words is "four hundred twenty-eight million, six hundred four thousand, six hundred seventy".