3400155 has 24 divisors (see below), whose sum is σ = 6430320. Its totient is φ = 1648320.

The previous prime is 3400127. The next prime is 3400157. The reversal of 3400155 is 5510043.

It is not a de Polignac number, because 3400155 - 2⁵ = 3400123 is a prime.

It is a super-2 number, since 2×3400155² = 23122108048050, which contains 22 as substring.

3400155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3400157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2940 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (267930).

Almost surely, 2^3400155 is an apocalyptic number.

3400155 is a deficient number, since it is larger than the sum of its proper divisors (3030165).

3400155 is a wasteful number, since it uses less digits than its factorization.

3400155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891 (or 6888 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3400155 is about 1843.9509212558. The cubic root of 3400155 is about 150.3717446119.

Adding to 3400155 its reverse (5510043), we get a palindrome (8910198).

The spelling of 3400155 in words is "three million, four hundred thousand, one hundred fifty-five".