3400400344 has 64 divisors (see below), whose sum is σ = 7157813760. Its totient is φ = 1500819840.

The previous prime is 3400400327. The next prime is 3400400351. The reversal of 3400400344 is 4430040043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561809 + ... + 2563135.

It is an arithmetic number, because the mean of its divisors is an integer number (111840840).

Almost surely, 2^3400400344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3400400344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3578906880).

3400400344 is an abundant number, since it is smaller than the sum of its proper divisors (3757413416).

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

3400400344 is a wasteful number, since it uses less digits than its factorization.

3400400344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 3400400344 is about 58312.9517688824. The cubic root of 3400400344 is about 1503.7536130170.

Adding to 3400400344 its reverse (4430040043), we get a palindrome (7830440387).

The spelling of 3400400344 in words is "three billion, four hundred million, four hundred thousand, three hundred forty-four".