3666402 has 24 divisors (see below), whose sum is σ = 7980336. Its totient is φ = 1216536.

The previous prime is 3666371. The next prime is 3666409. The reversal of 3666402 is 2046663.

It is not an unprimeable number, because it can be changed into a prime (3666409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5953 + ... + 6539.

It is an arithmetic number, because the mean of its divisors is an integer number (332514).

Almost surely, 2^3666402 is an apocalyptic number.

3666402 is an abundant number, since it is smaller than the sum of its proper divisors (4313934).

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

3666402 is a wasteful number, since it uses less digits than its factorization.

3666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 3666402 is about 1914.7851054361. The cubic root of 3666402 is about 154.1984566859.

The spelling of 3666402 in words is "three million, six hundred sixty-six thousand, four hundred two".