1404344020 has 48 divisors (see below), whose sum is σ = 3109091328. Its totient is φ = 532039680.

The previous prime is 1404343957. The next prime is 1404344023. The reversal of 1404344020 is 204434041.

It is a junction number, because it is equal to n+sod(n) for n = 1404343982 and 1404344000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404344023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5044 + ... + 53236.

It is an arithmetic number, because the mean of its divisors is an integer number (64772736).

Almost surely, 2^1404344020 is an apocalyptic number.

1404344020 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 1404344020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554545664).

1404344020 is an abundant number, since it is smaller than the sum of its proper divisors (1704747308).

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

1404344020 is a wasteful number, since it uses less digits than its factorization.

1404344020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48280 (or 48278 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1404344020 is about 37474.5783165068. The cubic root of 1404344020 is about 1119.8447967336.

Adding to 1404344020 its reverse (204434041), we get a palindrome (1608778061).

The spelling of 1404344020 in words is "one billion, four hundred four million, three hundred forty-four thousand, twenty".