3400187221 has 16 divisors (see below), whose sum is σ = 3812828544. Its totient is φ = 3015327744.

The previous prime is 3400187201. The next prime is 3400187227. The reversal of 3400187221 is 1227810043.

It is a cyclic number.

It is not a de Polignac number, because 3400187221 - 2⁹ = 3400186709 is a prime.

It is a super-2 number, since 2×3400187221² = 23122546275703405682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3400187221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3400187227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38700 + ... + 91093.

It is an arithmetic number, because the mean of its divisors is an integer number (238301784).

Almost surely, 2^3400187221 is an apocalyptic number.

It is an amenable number.

3400187221 is a deficient number, since it is larger than the sum of its proper divisors (412641323).

3400187221 is a wasteful number, since it uses less digits than its factorization.

3400187221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129900.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 3400187221 is about 58311.1243331836. The cubic root of 3400187221 is about 1503.7221960127.

Adding to 3400187221 its reverse (1227810043), we get a palindrome (4627997264).

The spelling of 3400187221 in words is "three billion, four hundred million, one hundred eighty-seven thousand, two hundred twenty-one".