1404345140 has 48 divisors (see below), whose sum is σ = 3271786560. Its totient is φ = 502010880.

The previous prime is 1404345113. The next prime is 1404345169. The reversal of 1404345140 is 415434041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41117 + ... + 67076.

It is an arithmetic number, because the mean of its divisors is an integer number (68162220).

Almost surely, 2^1404345140 is an apocalyptic number.

1404345140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404345140 is an abundant number, since it is smaller than the sum of its proper divisors (1867441420).

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

1404345140 is a wasteful number, since it uses less digits than its factorization.

1404345140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108272 (or 108270 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1404345140 is about 37474.5932599675. The cubic root of 1404345140 is about 1119.8450944351.

Adding to 1404345140 its reverse (415434041), we get a palindrome (1819779181).

The spelling of 1404345140 in words is "one billion, four hundred four million, three hundred forty-five thousand, one hundred forty".