1405253604 has 48 divisors (see below), whose sum is σ = 3461931200. Its totient is φ = 442423296.

The previous prime is 1405253593. The next prime is 1405253669. The reversal of 1405253604 is 4063525041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67692 + ... + 85980.

Almost surely, 2^1405253604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1405253604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730965600).

1405253604 is an abundant number, since it is smaller than the sum of its proper divisors (2056677596).

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

1405253604 is a wasteful number, since it uses less digits than its factorization.

1405253604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652 (or 18650 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1405253604 is about 37486.7123658504. The cubic root of 1405253604 is about 1120.0865164885.

Adding to 1405253604 its reverse (4063525041), we get a palindrome (5468778645).

The spelling of 1405253604 in words is "one billion, four hundred five million, two hundred fifty-three thousand, six hundred four".