40180194294 has 16 divisors (see below), whose sum is σ = 80938522560. Its totient is φ = 13297042440.

The previous prime is 40180194293. The next prime is 40180194343. The reversal of 40180194294 is 49249108104.

It is a happy number.

It is a super-2 number, since 2×40180194294² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40180194293) 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, 24088012 + ... + 24089679.

It is an arithmetic number, because the mean of its divisors is an integer number (5058657660).

Almost surely, 2^40180194294 is an apocalyptic number.

40180194294 is an abundant number, since it is smaller than the sum of its proper divisors (40758328266).

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

40180194294 is a wasteful number, since it uses less digits than its factorization.

40180194294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48177835.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 40180194294 in words is "forty billion, one hundred eighty million, one hundred ninety-four thousand, two hundred ninety-four".