2009041782 has 32 divisors (see below), whose sum is σ = 4414919040. Its totient is φ = 604417920.

The previous prime is 2009041753. The next prime is 2009041813. The reversal of 2009041782 is 2871409002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100323 + ... + 118670.

It is an arithmetic number, because the mean of its divisors is an integer number (137966220).

Almost surely, 2^2009041782 is an apocalyptic number.

2009041782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2009041782 is an abundant number, since it is smaller than the sum of its proper divisors (2405877258).

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

2009041782 is a wasteful number, since it uses less digits than its factorization.

2009041782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219148.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 2009041782 is about 44822.3357490437. The cubic root of 2009041782 is about 1261.8168511001.

The spelling of 2009041782 in words is "two billion, nine million, forty-one thousand, seven hundred eighty-two".