2604432534 has 64 divisors (see below), whose sum is σ = 5786719488. Its totient is φ = 774835200.

The previous prime is 2604432533. The next prime is 2604432539. The reversal of 2604432534 is 4352344062.

It is a super-2 number, since 2×2604432534² = 13566137648315322312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2604432495 and 2604432504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604432533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1160017 + ... + 1162259.

It is an arithmetic number, because the mean of its divisors is an integer number (90417492).

Almost surely, 2^2604432534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2604432534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2893359744).

2604432534 is an abundant number, since it is smaller than the sum of its proper divisors (3182286954).

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

2604432534 is a wasteful number, since it uses less digits than its factorization.

2604432534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 2604432534 is about 51033.6411987230. The cubic root of 2604432534 is about 1375.8498387578.

Adding to 2604432534 its reverse (4352344062), we get a palindrome (6956776596).

The spelling of 2604432534 in words is "two billion, six hundred four million, four hundred thirty-two thousand, five hundred thirty-four".