40144413194 has 8 divisors (see below), whose sum is σ = 60291055620. Its totient is φ = 20047394656.

The previous prime is 40144413193. The next prime is 40144413209. The reversal of 40144413194 is 49131444104.

It can be written as a sum of positive squares in 2 ways, for example, as 38343514225 + 1800898969 = 195815^2 + 42437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40144413194² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40144413193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12403949 + ... + 12407184.

Almost surely, 2^40144413194 is an apocalyptic number.

40144413194 is a deficient number, since it is larger than the sum of its proper divisors (20146642426).

40144413194 is a wasteful number, since it uses less digits than its factorization.

40144413194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24811944.

The product of its (nonzero) digits is 27648, while the sum is 35.

Adding to 40144413194 its reverse (49131444104), we get a palindrome (89275857298).

The spelling of 40144413194 in words is "forty billion, one hundred forty-four million, four hundred thirteen thousand, one hundred ninety-four".