340404144 has 40 divisors (see below), whose sum is σ = 903149040. Its totient is φ = 110400768.

The previous prime is 340404143. The next prime is 340404157. The reversal of 340404144 is 441404043.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (340404143) 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, 94059 + ... + 97610.

It is an arithmetic number, because the mean of its divisors is an integer number (22578726).

Almost surely, 2^340404144 is an apocalyptic number.

It is an amenable number.

340404144 is an abundant number, since it is smaller than the sum of its proper divisors (562744896).

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

340404144 is a wasteful number, since it uses less digits than its factorization.

340404144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191717 (or 191711 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 340404144 is about 18450.0445527917. The cubic root of 340404144 is about 698.2296379366.

Adding to 340404144 its reverse (441404043), we get a palindrome (781808187).

The spelling of 340404144 in words is "three hundred forty million, four hundred four thousand, one hundred forty-four".