180040040390 has 16 divisors (see below), whose sum is σ = 370368083232. Its totient is φ = 61728013824.

The previous prime is 180040040363. The next prime is 180040040399. The reversal of 180040040390 is 93040040081.

It is a super-2 number, since 2×180040040390² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180040040399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286000219 + ... + 1286000358.

It is an arithmetic number, because the mean of its divisors is an integer number (23148005202).

Almost surely, 2^180040040390 is an apocalyptic number.

180040040390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180040040390 is an abundant number, since it is smaller than the sum of its proper divisors (190328042842).

180040040390 is a wasteful number, since it uses less digits than its factorization.

180040040390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572000591.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 180040040390 in words is "one hundred eighty billion, forty million, forty thousand, three hundred ninety".