3694521600 has 1296 divisors, whose sum is σ = 17792611200. Its totient is φ = 722534400.

The previous prime is 3694521599. The next prime is 3694521629. The reversal of 3694521600 is 61254963.

It is a happy number.

3694521600 is a `hidden beast` number, since 3 + 6 + 9 + 45 + 2 + 1 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 217324792 + ... + 217324808.

Almost surely, 2^3694521600 is an apocalyptic number.

3694521600 is a gapful number since it is divisible by the number (30) 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 3694521600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8896305600).

3694521600 is an abundant number, since it is smaller than the sum of its proper divisors (14098089600).

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

3694521600 is a wasteful number, since it uses less digits than its factorization.

3694521600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 3694521600 is about 60782.5764508218. The cubic root of 3694521600 is about 1545.9166333024.

It can be divided in two parts, 3694521 and 600, that added together give a triangular number (3695121 = T₂₇₁₈).

The spelling of 3694521600 in words is "three billion, six hundred ninety-four million, five hundred twenty-one thousand, six hundred".