152388405 has 64 divisors (see below), whose sum is σ = 301271040. Its totient is φ = 72576000.

The previous prime is 152388403. The next prime is 152388413. The reversal of 152388405 is 504883251.

It is a happy number.

152388405 is a `hidden beast` number, since 15 + 238 + 8 + 405 = 666.

It is not a de Polignac number, because 152388405 - 2¹ = 152388403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152388405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152388403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53005 + ... + 55805.

It is an arithmetic number, because the mean of its divisors is an integer number (4707360).

Almost surely, 2^152388405 is an apocalyptic number.

152388405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152388405 is a deficient number, since it is larger than the sum of its proper divisors (148882635).

152388405 is a wasteful number, since it uses less digits than its factorization.

152388405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 152388405 is about 12344.5698588489. The cubic root of 152388405 is about 534.1345135191.

The spelling of 152388405 in words is "one hundred fifty-two million, three hundred eighty-eight thousand, four hundred five".