340020442 has 8 divisors (see below), whose sum is σ = 511501536. Its totient is φ = 169519932.

The previous prime is 340020433. The next prime is 340020467. The reversal of 340020442 is 244020043.

340020442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×340020442² = 231227801955750728, 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, 244278 + ... + 245665.

It is an arithmetic number, because the mean of its divisors is an integer number (63937692).

Almost surely, 2^340020442 is an apocalyptic number.

340020442 is a deficient number, since it is larger than the sum of its proper divisors (171481094).

340020442 is a wasteful number, since it uses less digits than its factorization.

340020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490292.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 340020442 is about 18439.6432178066. The cubic root of 340020442 is about 697.9671922139.

Adding to 340020442 its reverse (244020043), we get a palindrome (584040485).

The spelling of 340020442 in words is "three hundred forty million, twenty thousand, four hundred forty-two".