3401638642 has 16 divisors (see below), whose sum is σ = 5182474752. Its totient is φ = 1674185040.

The previous prime is 3401638621. The next prime is 3401638663. The reversal of 3401638642 is 2468361043.

It is an interprime number because it is at equal distance from previous prime (3401638621) and next prime (3401638663).

It is a super-2 number, since 2×3401638642² = 23142290901495208328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185967 + ... + 203437.

It is an arithmetic number, because the mean of its divisors is an integer number (323904672).

Almost surely, 2^3401638642 is an apocalyptic number.

3401638642 is a deficient number, since it is larger than the sum of its proper divisors (1780836110).

3401638642 is a wasteful number, since it uses less digits than its factorization.

3401638642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18993.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 3401638642 is about 58323.5684950775. The cubic root of 3401638642 is about 1503.9361277127.

Adding to 3401638642 its reverse (2468361043), we get a palindrome (5869999685).

The spelling of 3401638642 in words is "three billion, four hundred one million, six hundred thirty-eight thousand, six hundred forty-two".