1840949396 has 48 divisors (see below), whose sum is σ = 3819742080. Its totient is φ = 765313920.

The previous prime is 1840949359. The next prime is 1840949399. The reversal of 1840949396 is 6939490481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840949399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47585 + ... + 77111.

It is an arithmetic number, because the mean of its divisors is an integer number (79577960).

Almost surely, 2^1840949396 is an apocalyptic number.

It is an amenable number.

1840949396 is an abundant number, since it is smaller than the sum of its proper divisors (1978792684).

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

1840949396 is a wasteful number, since it uses less digits than its factorization.

1840949396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29664 (or 29662 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 1840949396 is about 42906.2862061027. The cubic root of 1840949396 is about 1225.5958552833.

The spelling of 1840949396 in words is "one billion, eight hundred forty million, nine hundred forty-nine thousand, three hundred ninety-six".