1623750000 has 160 divisors (see below), whose sum is σ = 5255455296. Its totient is φ = 432000000.

The previous prime is 1623749969. The next prime is 1623750017. The reversal of 1623750000 is 573261.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3749784 + ... + 3750216.

Almost surely, 2^1623750000 is an apocalyptic number.

1623750000 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 1623750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2627727648).

1623750000 is an abundant number, since it is smaller than the sum of its proper divisors (3631705296).

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

1623750000 is an frugal number, since it uses more digits than its factorization.

1623750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1623750000 is about 40295.7814169176. The cubic root of 1623750000 is about 1175.3658133666.

The spelling of 1623750000 in words is "one billion, six hundred twenty-three million, seven hundred fifty thousand".