3666280437 has 6 divisors (see below), whose sum is σ = 5295738422. Its totient is φ = 2444186952.

The previous prime is 3666280411. The next prime is 3666280439. The reversal of 3666280437 is 7340826663.

It can be written as a sum of positive squares in only one way, i.e., 2863748196 + 802532241 = 53514^2 + 28329^2 .

It is not a de Polignac number, because 3666280437 - 2²² = 3662086133 is a prime.

It is a super-2 number, since 2×3666280437² = 26883224485457821938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3666280392 and 3666280401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666280439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203682238 + ... + 203682255.

Almost surely, 2^3666280437 is an apocalyptic number.

It is an amenable number.

3666280437 is a deficient number, since it is larger than the sum of its proper divisors (1629457985).

3666280437 is a wasteful number, since it uses less digits than its factorization.

3666280437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407364499 (or 407364496 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 3666280437 is about 60549.8178114518. The cubic root of 3666280437 is about 1541.9675246886.

The spelling of 3666280437 in words is "three billion, six hundred sixty-six million, two hundred eighty thousand, four hundred thirty-seven".