3525742836 has 192 divisors, whose sum is σ = 11443138560. Its totient is φ = 912021120.

The previous prime is 3525742823. The next prime is 3525742837. The reversal of 3525742836 is 6382475253.

3525742836 is a `hidden beast` number, since 3 + 52 + 574 + 28 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3525742791 and 3525742800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525742837) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2435865 + ... + 2437311.

It is an arithmetic number, because the mean of its divisors is an integer number (59599680).

Almost surely, 2^3525742836 is an apocalyptic number.

3525742836 is a gapful number since it is divisible by the number (36) 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 3525742836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5721569280).

3525742836 is an abundant number, since it is smaller than the sum of its proper divisors (7917395724).

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

3525742836 is a wasteful number, since it uses less digits than its factorization.

3525742836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771 (or 1763 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 3525742836 is about 59377.9659132914. The cubic root of 3525742836 is about 1522.0077974094.

The spelling of 3525742836 in words is "three billion, five hundred twenty-five million, seven hundred forty-two thousand, eight hundred thirty-six".