2039149440 has 192 divisors, whose sum is σ = 7206067440. Its totient is φ = 531062784.

The previous prime is 2039149421. The next prime is 2039149447. The reversal of 2039149440 is 449419302.

2039149440 is a `hidden beast` number, since 203 + 9 + 1 + 4 + 9 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2039149395 and 2039149404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2039149447) 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, 243564 + ... + 251796.

Almost surely, 2^2039149440 is an apocalyptic number.

2039149440 is a gapful number since it is divisible by the number (20) 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 2039149440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603033720).

2039149440 is an abundant number, since it is smaller than the sum of its proper divisors (5166918000).

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

2039149440 is a wasteful number, since it uses less digits than its factorization.

2039149440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8301 (or 8286 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2039149440 is about 45156.9423234125. The cubic root of 2039149440 is about 1268.0888525874.

The spelling of 2039149440 in words is "two billion, thirty-nine million, one hundred forty-nine thousand, four hundred forty".