3766258728 has 32 divisors (see below), whose sum is σ = 10461830400. Its totient is φ = 1255419504.

The previous prime is 3766258723. The next prime is 3766258733. The reversal of 3766258728 is 8278526673.

3766258728 is a `hidden beast` number, since 3 + 7 + 6 + 625 + 8 + 7 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (3766258723) and next prime (3766258733).

It is a super-3 number, since 3×3766258728³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3766258721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8717976 + ... + 8718407.

It is an arithmetic number, because the mean of its divisors is an integer number (326932200).

Almost surely, 2^3766258728 is an apocalyptic number.

It is an amenable number.

3766258728 is an abundant number, since it is smaller than the sum of its proper divisors (6695571672).

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

3766258728 is a wasteful number, since it uses less digits than its factorization.

3766258728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436398 (or 17436388 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 3766258728 is about 61369.8519470269. The cubic root of 3766258728 is about 1555.8583334874.

The spelling of 3766258728 in words is "three billion, seven hundred sixty-six million, two hundred fifty-eight thousand, seven hundred twenty-eight".