1404365140 has 12 divisors (see below), whose sum is σ = 2949166836. Its totient is φ = 561746048.

The previous prime is 1404365117. The next prime is 1404365153. The reversal of 1404365140 is 415634041.

It can be written as a sum of positive squares in 2 ways, for example, as 546343876 + 858021264 = 23374^2 + 29292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1404365099 and 1404365108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35109109 + ... + 35109148.

It is an arithmetic number, because the mean of its divisors is an integer number (245763903).

Almost surely, 2^1404365140 is an apocalyptic number.

1404365140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404365140 is an abundant number, since it is smaller than the sum of its proper divisors (1544801696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1404365140 is a wasteful number, since it uses less digits than its factorization.

1404365140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70218266 (or 70218264 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1404365140 is about 37474.8601064767. The cubic root of 1404365140 is about 1119.8504105061.

Adding to 1404365140 its reverse (415634041), we get a palindrome (1819999181).

The spelling of 1404365140 in words is "one billion, four hundred four million, three hundred sixty-five thousand, one hundred forty".