1404730440 has 96 divisors (see below), whose sum is σ = 4570820280. Its totient is φ = 374148096.

The previous prime is 1404730427. The next prime is 1404730447. The reversal of 1404730440 is 440374041.

1404730440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 697276836 + 707453604 = 26406^2 + 26598^2 .

It is not an unprimeable number, because it can be changed into a prime (1404730447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393142 + ... + 396698.

Almost surely, 2^1404730440 is an apocalyptic number.

1404730440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404730440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2285410140).

1404730440 is an abundant number, since it is smaller than the sum of its proper divisors (3166089840).

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

1404730440 is a wasteful number, since it uses less digits than its factorization.

1404730440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671 (or 4664 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 1404730440 is about 37479.7337237073. The cubic root of 1404730440 is about 1119.9474996649.

The spelling of 1404730440 in words is "one billion, four hundred four million, seven hundred thirty thousand, four hundred forty".