1840149792 has 192 divisors, whose sum is σ = 5819506560. Its totient is φ = 562332672.

The previous prime is 1840149769. The next prime is 1840149793. The reversal of 1840149792 is 2979410481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1840149793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1942663 + ... + 1943609.

It is an arithmetic number, because the mean of its divisors is an integer number (30309930).

Almost surely, 2^1840149792 is an apocalyptic number.

1840149792 is a gapful number since it is divisible by the number (12) 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 1840149792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2909753280).

1840149792 is an abundant number, since it is smaller than the sum of its proper divisors (3979356768).

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

1840149792 is a wasteful number, since it uses less digits than its factorization.

1840149792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1840149792 is about 42896.9671655235. The cubic root of 1840149792 is about 1225.4183864786.

The spelling of 1840149792 in words is "one billion, eight hundred forty million, one hundred forty-nine thousand, seven hundred ninety-two".