1766040918 has 64 divisors (see below), whose sum is σ = 3770941440. Its totient is φ = 549817632.

The previous prime is 1766040911. The next prime is 1766040967. The reversal of 1766040918 is 8190406671.

It is a super-3 number, since 3×1766040918³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1766040918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1766040911) 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, 3228321 + ... + 3228867.

It is an arithmetic number, because the mean of its divisors is an integer number (58920960).

Almost surely, 2^1766040918 is an apocalyptic number.

1766040918 is an abundant number, since it is smaller than the sum of its proper divisors (2004900522).

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

1766040918 is a wasteful number, since it uses less digits than its factorization.

1766040918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1766040918 is about 42024.2896192190. The cubic root of 1766040918 is about 1208.7419289746.

The spelling of 1766040918 in words is "one billion, seven hundred sixty-six million, forty thousand, nine hundred eighteen".