385424739 has 18 divisors (see below), whose sum is σ = 647619180. Its totient is φ = 220242456.

The previous prime is 385424729. The next prime is 385424749. The reversal of 385424739 is 937424583.

385424739 is a `hidden beast` number, since 38 + 542 + 4 + 73 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (385424729) and next prime (385424749).

It is not a de Polignac number, because 385424739 - 2¹⁶ = 385359203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385424694 and 385424703.

It is not an unprimeable number, because it can be changed into a prime (385424719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 436549 + ... + 437430.

Almost surely, 2^385424739 is an apocalyptic number.

385424739 is a deficient number, since it is larger than the sum of its proper divisors (262194441).

385424739 is a wasteful number, since it uses less digits than its factorization.

385424739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873999 (or 873989 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 385424739 is about 19632.2372387866. The cubic root of 385424739 is about 727.7460591131.

The spelling of 385424739 in words is "three hundred eighty-five million, four hundred twenty-four thousand, seven hundred thirty-nine".