1404140146 has 16 divisors (see below), whose sum is σ = 2163009024. Its totient is φ = 683255664.

The previous prime is 1404140119. The next prime is 1404140173. The reversal of 1404140146 is 6410414041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1404140119) and next prime (1404140173).

It is a self number, because there is not a number n which added to its sum of digits gives 1404140146.

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 7 ways as a sum of consecutive naturals, for example, 5650 + ... + 53293.

It is an arithmetic number, because the mean of its divisors is an integer number (135188064).

Almost surely, 2^1404140146 is an apocalyptic number.

1404140146 is a deficient number, since it is larger than the sum of its proper divisors (758868878).

1404140146 is a wasteful number, since it uses less digits than its factorization.

1404140146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59265.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1404140146 is about 37471.8580537448. The cubic root of 1404140146 is about 1119.7906033917.

Adding to 1404140146 its reverse (6410414041), we get a palindrome (7814554187).

The spelling of 1404140146 in words is "one billion, four hundred four million, one hundred forty thousand, one hundred forty-six".