385012899 has 16 divisors (see below), whose sum is σ = 577612800. Its totient is φ = 253424808.

The previous prime is 385012811. The next prime is 385012913. The reversal of 385012899 is 998210583.

It is a happy number.

385012899 is a `hidden beast` number, since 38 + 501 + 28 + 99 = 666.

It is not a de Polignac number, because 385012899 - 2¹³ = 385004707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385002899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88119 + ... + 92384.

It is an arithmetic number, because the mean of its divisors is an integer number (36100800).

Almost surely, 2^385012899 is an apocalyptic number.

385012899 is a deficient number, since it is larger than the sum of its proper divisors (192599901).

385012899 is a wasteful number, since it uses less digits than its factorization.

385012899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180591 (or 180585 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 385012899 is about 19621.7455645516. The cubic root of 385012899 is about 727.4867592446.

The spelling of 385012899 in words is "three hundred eighty-five million, twelve thousand, eight hundred ninety-nine".