1826428680 has 96 divisors (see below), whose sum is σ = 5953311000. Its totient is φ = 485618688.

The previous prime is 1826428663. The next prime is 1826428687. The reversal of 1826428680 is 868246281.

It can be written as a sum of positive squares in 4 ways, for example, as 1437471396 + 388957284 = 37914^2 + 19722^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1826428687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118372 + ... + 132908.

Almost surely, 2^1826428680 is an apocalyptic number.

1826428680 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 1826428680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2976655500).

1826428680 is an abundant number, since it is smaller than the sum of its proper divisors (4126882320).

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

1826428680 is a wasteful number, since it uses less digits than its factorization.

1826428680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903 (or 14896 counting only the distinct ones).

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

The square root of 1826428680 is about 42736.7368899405. The cubic root of 1826428680 is about 1222.3649994576.

The spelling of 1826428680 in words is "one billion, eight hundred twenty-six million, four hundred twenty-eight thousand, six hundred eighty".