146326388 has 12 divisors (see below), whose sum is σ = 275769060. Its totient is φ = 67535232.

The previous prime is 146326351. The next prime is 146326409. The reversal of 146326388 is 883623641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82773604 + 63552784 = 9098^2 + 7972^2 .

It is a super-2 number, since 2×146326388² = 42822823650253088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406933 + ... + 1407036.

It is an arithmetic number, because the mean of its divisors is an integer number (22980755).

Almost surely, 2^146326388 is an apocalyptic number.

It is an amenable number.

146326388 is a deficient number, since it is larger than the sum of its proper divisors (129442672).

146326388 is a wasteful number, since it uses less digits than its factorization.

146326388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813986 (or 2813984 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 146326388 is about 12096.5444652595. The cubic root of 146326388 is about 526.9558345440.

The spelling of 146326388 in words is "one hundred forty-six million, three hundred twenty-six thousand, three hundred eighty-eight".