340213444 has 12 divisors (see below), whose sum is σ = 597494268. Its totient is φ = 169500800.

The previous prime is 340213427. The next prime is 340213451. The reversal of 340213444 is 444312043.

It can be written as a sum of positive squares in 2 ways, for example, as 266081344 + 74132100 = 16312^2 + 8610^2 .

It is a super-2 number, since 2×340213444² = 231490374956682272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150217 + ... + 152464.

It is an arithmetic number, because the mean of its divisors is an integer number (49791189).

Almost surely, 2^340213444 is an apocalyptic number.

It is an amenable number.

340213444 is a deficient number, since it is larger than the sum of its proper divisors (257280824).

340213444 is a wasteful number, since it uses less digits than its factorization.

340213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302966 (or 302964 counting only the distinct ones).

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

The square root of 340213444 is about 18444.8758195874. The cubic root of 340213444 is about 698.0992270052.

Adding to 340213444 its reverse (444312043), we get a palindrome (784525487).

The spelling of 340213444 in words is "three hundred forty million, two hundred thirteen thousand, four hundred forty-four".