340020043 has 24 divisors (see below), whose sum is σ = 404260416. Its totient is φ = 284655360.

The previous prime is 340020019. The next prime is 340020089.

340020043 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 340020043 - 2¹³ = 340011851 is a prime.

It is a super-2 number, since 2×340020043² = 231227259283443698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340019999 and 340020026.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94921 + ... + 98437.

It is an arithmetic number, because the mean of its divisors is an integer number (16844184).

Almost surely, 2^340020043 is an apocalyptic number.

340020043 is a deficient number, since it is larger than the sum of its proper divisors (64240373).

340020043 is a wasteful number, since it uses less digits than its factorization.

340020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603 (or 3592 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 340020043 is about 18439.6323987221. The cubic root of 340020043 is about 697.9669192019.

The spelling of 340020043 in words is "three hundred forty million, twenty thousand, forty-three".