3774136320 has 180 divisors, whose sum is σ = 13085829120. Its totient is φ = 1006239744.

The previous prime is 3774136313. The next prime is 3774136337. The reversal of 3774136320 is 236314773.

3774136320 is a `hidden beast` number, since 3 + 7 + 7 + 4 + 13 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734721 + ... + 739839.

Almost surely, 2^3774136320 is an apocalyptic number.

3774136320 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 3774136320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6542914560).

3774136320 is an abundant number, since it is smaller than the sum of its proper divisors (9311692800).

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

3774136320 is an equidigital number, since it uses as much as digits as its factorization.

3774136320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5129 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 3774136320 is about 61433.9997070026. Note that the first 3 decimals coincide. The cubic root of 3774136320 is about 1556.9423342332.

Adding to 3774136320 its sum of digits (36), we get a square (3774136356 = 61434²).

The spelling of 3774136320 in words is "three billion, seven hundred seventy-four million, one hundred thirty-six thousand, three hundred twenty".