2007233781 has 16 divisors (see below), whose sum is σ = 3059286144. Its totient is φ = 1146749184.

The previous prime is 2007233779. The next prime is 2007233797. The reversal of 2007233781 is 1873327002.

It is not a de Polignac number, because 2007233781 - 2¹ = 2007233779 is a prime.

It is a super-2 number, since 2×2007233781² = 8057974903175111922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2007233381) 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, 154905 + ... + 167361.

It is an arithmetic number, because the mean of its divisors is an integer number (191205384).

Almost surely, 2^2007233781 is an apocalyptic number.

2007233781 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2007233781 is a deficient number, since it is larger than the sum of its proper divisors (1052052363).

2007233781 is a wasteful number, since it uses less digits than its factorization.

2007233781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2007233781 is about 44802.1626821742. The cubic root of 2007233781 is about 1261.4382210405.

The spelling of 2007233781 in words is "two billion, seven million, two hundred thirty-three thousand, seven hundred eighty-one".