402384149 has 4 divisors (see below), whose sum is σ = 419879136. Its totient is φ = 384889164.

The previous prime is 402384097. The next prime is 402384167. The reversal of 402384149 is 941483204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402384149 - 2¹² = 402380053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402384179) 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 3 ways as a sum of consecutive naturals, for example, 8747459 + ... + 8747504.

It is an arithmetic number, because the mean of its divisors is an integer number (104969784).

Almost surely, 2^402384149 is an apocalyptic number.

It is an amenable number.

402384149 is a deficient number, since it is larger than the sum of its proper divisors (17494987).

402384149 is a wasteful number, since it uses less digits than its factorization.

402384149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17494986.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 402384149 is about 20059.5151736028. The cubic root of 402384149 is about 738.2672808996.

The spelling of 402384149 in words is "four hundred two million, three hundred eighty-four thousand, one hundred forty-nine".