1304400142 has 4 divisors (see below), whose sum is σ = 1956600216. Its totient is φ = 652200070.

The previous prime is 1304400107. The next prime is 1304400151. The reversal of 1304400142 is 2410044031.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326100034 + ... + 326100037.

It is an arithmetic number, because the mean of its divisors is an integer number (489150054).

Almost surely, 2^1304400142 is an apocalyptic number.

1304400142 is a deficient number, since it is larger than the sum of its proper divisors (652200074).

1304400142 is an equidigital number, since it uses as much as digits as its factorization.

1304400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652200073.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1304400142 is about 36116.4801994879. The cubic root of 1304400142 is about 1092.6228511874.

Adding to 1304400142 its reverse (2410044031), we get a palindrome (3714444173).

The spelling of 1304400142 in words is "one billion, three hundred four million, four hundred thousand, one hundred forty-two".