1404345146 has 32 divisors (see below), whose sum is σ = 2254476240. Its totient is φ = 653787136.

The previous prime is 1404345113. The next prime is 1404345169. The reversal of 1404345146 is 6415434041.

It can be written as a sum of positive squares in 8 ways, for example, as 1200969025 + 203376121 = 34655^2 + 14261^2 .

It is a super-2 number, since 2×1404345146² = 3944370578187522632, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1511210 + ... + 1512138.

Almost surely, 2^1404345146 is an apocalyptic number.

1404345146 is a deficient number, since it is larger than the sum of its proper divisors (850131094).

1404345146 is a wasteful number, since it uses less digits than its factorization.

1404345146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1404345146 is about 37474.5933400217. The cubic root of 1404345146 is about 1119.8450960299.

Adding to 1404345146 its reverse (6415434041), we get a palindrome (7819779187).

The spelling of 1404345146 in words is "one billion, four hundred four million, three hundred forty-five thousand, one hundred forty-six".