3651402 has 16 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 1211232.

The previous prime is 3651341. The next prime is 3651407. The reversal of 3651402 is 2041563.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3651407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27 + ... + 2702.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^3651402 is an apocalyptic number.

3651402 is an abundant number, since it is smaller than the sum of its proper divisors (3686838).

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

3651402 is a wasteful number, since it uses less digits than its factorization.

3651402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3651402 is about 1910.8642023964. The cubic root of 3651402 is about 153.9878834567.

Adding to 3651402 its reverse (2041563), we get a palindrome (5692965).

The spelling of 3651402 in words is "three million, six hundred fifty-one thousand, four hundred two".