2043946507 has 2 divisors, whose sum is σ = 2043946508. Its totient is φ = 2043946506.

The previous prime is 2043946469. The next prime is 2043946547. The reversal of 2043946507 is 7056493402.

It is a happy number.

It is an a-pointer prime, because the next prime (2043946547) can be obtained adding 2043946507 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2043946507 - 2⁷ = 2043946379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043946507.

It is not a weakly prime, because it can be changed into another prime (2043946547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021973253 + 1021973254.

It is an arithmetic number, because the mean of its divisors is an integer number (1021973254).

Almost surely, 2^2043946507 is an apocalyptic number.

2043946507 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043946507 is an equidigital number, since it uses as much as digits as its factorization.

2043946507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 2043946507 is about 45210.0266202089. The cubic root of 2043946507 is about 1269.0824602088.

The spelling of 2043946507 in words is "two billion, forty-three million, nine hundred forty-six thousand, five hundred seven".