428620502 has 16 divisors (see below), whose sum is σ = 671328000. Its totient is φ = 204856872.

The previous prime is 428620501. The next prime is 428620513. The reversal of 428620502 is 205026824.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428620501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120749 + ... + 124247.

It is an arithmetic number, because the mean of its divisors is an integer number (41958000).

Almost surely, 2^428620502 is an apocalyptic number.

428620502 is a deficient number, since it is larger than the sum of its proper divisors (242707498).

428620502 is a wasteful number, since it uses less digits than its factorization.

428620502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 428620502 is about 20703.1519822466. The cubic root of 428620502 is about 753.9762168643.

The spelling of 428620502 in words is "four hundred twenty-eight million, six hundred twenty thousand, five hundred two".