340143442 has 16 divisors (see below), whose sum is σ = 532602072. Its totient is φ = 162760320.

The previous prime is 340143367. The next prime is 340143467. The reversal of 340143442 is 244341043.

It can be written as a sum of positive squares in 4 ways, for example, as 325405521 + 14737921 = 18039^2 + 3839^2 .

It is a super-2 number, since 2×340143442² = 231395122271214728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33163 + ... + 42190.

Almost surely, 2^340143442 is an apocalyptic number.

340143442 is a deficient number, since it is larger than the sum of its proper divisors (192458630).

340143442 is a wasteful number, since it uses less digits than its factorization.

340143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75453.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 340143442 is about 18442.9781217676. The cubic root of 340143442 is about 698.0513436396.

Adding to 340143442 its reverse (244341043), we get a palindrome (584484485).

The spelling of 340143442 in words is "three hundred forty million, one hundred forty-three thousand, four hundred forty-two".