1628862480 has 320 divisors, whose sum is σ = 6790279680. Its totient is φ = 350355456.

The previous prime is 1628862479. The next prime is 1628862491. The reversal of 1628862480 is 842688261.

1628862480 is a `hidden beast` number, since 16 + 2 + 8 + 8 + 624 + 8 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253872 + ... + 260208.

It is an arithmetic number, because the mean of its divisors is an integer number (21219624).

Almost surely, 2^1628862480 is an apocalyptic number.

1628862480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1628862480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3395139840).

1628862480 is an abundant number, since it is smaller than the sum of its proper divisors (5161417200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1628862480 is a wasteful number, since it uses less digits than its factorization.

1628862480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383 (or 6371 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 1628862480 is about 40359.1684750813. The cubic root of 1628862480 is about 1176.5980922710.

The spelling of 1628862480 in words is "one billion, six hundred twenty-eight million, eight hundred sixty-two thousand, four hundred eighty".