145344331404 has 18 divisors (see below), whose sum is σ = 367398171140. Its totient is φ = 48448110456.

The previous prime is 145344331399. The next prime is 145344331417. The reversal of 145344331404 is 404133443541.

145344331404 is a `hidden beast` number, since 14 + 534 + 43 + 31 + 40 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×145344331404² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4037342539 = 145344331404 / (1 + 4 + 5 + 3 + 4 + 4 + 3 + 3 + 1 + 4 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2018671234 + ... + 2018671305.

Almost surely, 2^145344331404 is an apocalyptic number.

It is an amenable number.

145344331404 is an abundant number, since it is smaller than the sum of its proper divisors (222053839736).

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

145344331404 is a wasteful number, since it uses less digits than its factorization.

145344331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037342549 (or 4037342544 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 145344331404 its reverse (404133443541), we get a palindrome (549477774945).

The spelling of 145344331404 in words is "one hundred forty-five billion, three hundred forty-four million, three hundred thirty-one thousand, four hundred four".