340404310442 has 32 divisors (see below), whose sum is σ = 585593798400. Its totient is φ = 145376945280.

The previous prime is 340404310429. The next prime is 340404310447. The reversal of 340404310442 is 244013404043.

It is a happy number.

It is a super-3 number, since 3×340404310442³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (340404310447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18926558 + ... + 18944534.

It is an arithmetic number, because the mean of its divisors is an integer number (18299806200).

Almost surely, 2^340404310442 is an apocalyptic number.

340404310442 is a deficient number, since it is larger than the sum of its proper divisors (245189487958).

340404310442 is a wasteful number, since it uses less digits than its factorization.

340404310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22646.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 340404310442 its reverse (244013404043), we get a palindrome (584417714485).

The spelling of 340404310442 in words is "three hundred forty billion, four hundred four million, three hundred ten thousand, four hundred forty-two".