1832778090 has 160 divisors (see below), whose sum is σ = 5790064896. Its totient is φ = 410106240.

The previous prime is 1832778071. The next prime is 1832778131. The reversal of 1832778090 is 908772381.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 107919 + ... + 123741.

Almost surely, 2^1832778090 is an apocalyptic number.

1832778090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1832778090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895032448).

1832778090 is an abundant number, since it is smaller than the sum of its proper divisors (3957286806).

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

1832778090 is a wasteful number, since it uses less digits than its factorization.

1832778090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15866 (or 15857 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1832778090 is about 42810.9575926538. The cubic root of 1832778090 is about 1223.7798407371.

The spelling of 1832778090 in words is "one billion, eight hundred thirty-two million, seven hundred seventy-eight thousand, ninety".