1829979648 has 160 divisors (see below), whose sum is σ = 6191032320. Its totient is φ = 522823680.

The previous prime is 1829979589. The next prime is 1829979649. The reversal of 1829979648 is 8469799281.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1829979649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 87313 + ... + 106223.

It is an arithmetic number, because the mean of its divisors is an integer number (38693952).

Almost surely, 2^1829979648 is an apocalyptic number.

1829979648 is a gapful number since it is divisible by the number (18) 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 1829979648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3095516160).

1829979648 is an abundant number, since it is smaller than the sum of its proper divisors (4361052672).

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

1829979648 is an equidigital number, since it uses as much as digits as its factorization.

1829979648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18945 (or 18923 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The square root of 1829979648 is about 42778.2613952461. The cubic root of 1829979648 is about 1223.1566662907.

The spelling of 1829979648 in words is "one billion, eight hundred twenty-nine million, nine hundred seventy-nine thousand, six hundred forty-eight".