1642930000 has 100 divisors (see below), whose sum is σ = 4187534560. Its totient is φ = 622512000.

The previous prime is 1642929991. The next prime is 1642930001. The reversal of 1642930000 is 392461.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642930001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 185677 + ... + 194323.

Almost surely, 2^1642930000 is an apocalyptic number.

1642930000 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 1642930000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093767280).

1642930000 is an abundant number, since it is smaller than the sum of its proper divisors (2544604560).

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

1642930000 is an equidigital number, since it uses as much as digits as its factorization.

1642930000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1642930000 is about 40533.0729158301. The cubic root of 1642930000 is about 1179.9755812241.

The spelling of 1642930000 in words is "one billion, six hundred forty-two million, nine hundred thirty thousand".