1709540404 has 24 divisors (see below), whose sum is σ = 3514720608. Its totient is φ = 717289440.

The previous prime is 1709540377. The next prime is 1709540407. The reversal of 1709540404 is 4040459071.

It is a self number, because there is not a number n which added to its sum of digits gives 1709540404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1709540407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493782 + ... + 1494925.

It is an arithmetic number, because the mean of its divisors is an integer number (146446692).

Almost surely, 2^1709540404 is an apocalyptic number.

It is an amenable number.

1709540404 is an abundant number, since it is smaller than the sum of its proper divisors (1805180204).

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

1709540404 is a wasteful number, since it uses less digits than its factorization.

1709540404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988735 (or 2988733 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1709540404 is about 41346.5887831149. The cubic root of 1709540404 is about 1195.7116385894.

Adding to 1709540404 its reverse (4040459071), we get a palindrome (5749999475).

The spelling of 1709540404 in words is "one billion, seven hundred nine million, five hundred forty thousand, four hundred four".