340020023 has 8 divisors (see below), whose sum is σ = 388976640. Its totient is φ = 291159000.

The previous prime is 340020019. The next prime is 340020089. The reversal of 340020023 is 320020043.

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

It is a cyclic number.

It is not a de Polignac number, because 340020023 - 2² = 340020019 is a prime.

It is a super-2 number, since 2×340020023² = 231227232081841058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16103 + ... + 30648.

It is an arithmetic number, because the mean of its divisors is an integer number (48622080).

Almost surely, 2^340020023 is an apocalyptic number.

340020023 is a deficient number, since it is larger than the sum of its proper divisors (48956617).

340020023 is a wasteful number, since it uses less digits than its factorization.

340020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47797.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 340020023 is about 18439.6318564119. The cubic root of 340020023 is about 697.9669055171.

Adding to 340020023 its reverse (320020043), we get a palindrome (660040066).

The spelling of 340020023 in words is "three hundred forty million, twenty thousand, twenty-three".