3501642 has 16 divisors (see below), whose sum is σ = 7029792. Its totient is φ = 1162800.

The previous prime is 3501637. The next prime is 3501647. The reversal of 3501642 is 2461053.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3501637) and next prime (3501647).

It is a super-2 number, since 2×3501642² = 24522993392328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3501647) 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, 892 + ... + 2792.

It is an arithmetic number, because the mean of its divisors is an integer number (439362).

Almost surely, 2^3501642 is an apocalyptic number.

3501642 is an abundant number, since it is smaller than the sum of its proper divisors (3528150).

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

3501642 is a wasteful number, since it uses less digits than its factorization.

3501642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

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

The square root of 3501642 is about 1871.2674848883. The cubic root of 3501642 is about 151.8531881155.

Adding to 3501642 its reverse (2461053), we get a palindrome (5962695).

The spelling of 3501642 in words is "three million, five hundred one thousand, six hundred forty-two".