340044442 has 4 divisors (see below), whose sum is σ = 510066666. Its totient is φ = 170022220.

The previous prime is 340044433. The next prime is 340044491. The reversal of 340044442 is 244440043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244440043 = 29 ⋅8428967.

It can be written as a sum of positive squares in only one way, i.e., 338964921 + 1079521 = 18411^2 + 1039^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85011109 + ... + 85011112.

Almost surely, 2^340044442 is an apocalyptic number.

340044442 is a deficient number, since it is larger than the sum of its proper divisors (170022224).

340044442 is a wasteful number, since it uses less digits than its factorization.

340044442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170022223.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 340044442 is about 18440.2939781339. The cubic root of 340044442 is about 697.9836135977.

Adding to 340044442 its reverse (244440043), we get a palindrome (584484485).

The spelling of 340044442 in words is "three hundred forty million, forty-four thousand, four hundred forty-two".