3756535220 has 96 divisors (see below), whose sum is σ = 8821612800. Its totient is φ = 1335343104.

The previous prime is 3756535217. The next prime is 3756535231. The reversal of 3756535220 is 225356573.

It is a super-2 number, since 2×3756535220² = 28223113718200896800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2408801 + ... + 2410359.

It is an arithmetic number, because the mean of its divisors is an integer number (91891800).

Almost surely, 2^3756535220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3756535220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4410806400).

3756535220 is an abundant number, since it is smaller than the sum of its proper divisors (5065077580).

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

3756535220 is a wasteful number, since it uses less digits than its factorization.

3756535220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 38.

The square root of 3756535220 is about 61290.5801897812. The cubic root of 3756535220 is about 1554.5182380097.

The spelling of 3756535220 in words is "three billion, seven hundred fifty-six million, five hundred thirty-five thousand, two hundred twenty".