309700041049 has 27 divisors (see below), whose sum is σ = 364151835957. Its totient is φ = 262622331384.

The previous prime is 309700041043. The next prime is 309700041061. The reversal of 309700041049 is 940140007903.

The square root of 309700041049 is 556507.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 309700041049 - 2⁹ = 309700040537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 309700040999 and 309700041017.

It is not an unprimeable number, because it can be changed into a prime (309700041043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 416823372 + ... + 416824114.

Almost surely, 2^309700041049 is an apocalyptic number.

309700041049 is the 556507-th square number.

309700041049 is the 278254-th centered octagonal number.

It is an amenable number.

309700041049 is a deficient number, since it is larger than the sum of its proper divisors (54451794908).

309700041049 is an frugal number, since it uses more digits than its factorization.

309700041049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 309700041049 in words is "three hundred nine billion, seven hundred million, forty-one thousand, forty-nine".