1404454340 has 24 divisors (see below), whose sum is σ = 3051057240. Its totient is φ = 542409728.

The previous prime is 1404454321. The next prime is 1404454379. The reversal of 1404454340 is 434544041.

It can be written as a sum of positive squares in 4 ways, for example, as 519748804 + 884705536 = 22798^2 + 29744^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210157 + ... + 1211316.

It is an arithmetic number, because the mean of its divisors is an integer number (127127385).

Almost surely, 2^1404454340 is an apocalyptic number.

1404454340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404454340 is an abundant number, since it is smaller than the sum of its proper divisors (1646602900).

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

1404454340 is a wasteful number, since it uses less digits than its factorization.

1404454340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421511 (or 2421509 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1404454340 is about 37476.0502187731. The cubic root of 1404454340 is about 1119.8741195684.

Adding to 1404454340 its reverse (434544041), we get a palindrome (1838998381).

The spelling of 1404454340 in words is "one billion, four hundred four million, four hundred fifty-four thousand, three hundred forty".