34400412 has 54 divisors (see below), whose sum is σ = 91808808. Its totient is φ = 10859184.

The previous prime is 34400411. The next prime is 34400449. The reversal of 34400412 is 21400443.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34400411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11673 + ... + 14319.

Almost surely, 2^34400412 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 34400412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45904404).

34400412 is an abundant number, since it is smaller than the sum of its proper divisors (57408396).

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

34400412 is a wasteful number, since it uses less digits than its factorization.

34400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 34400412 is about 5865.1864420494. The cubic root of 34400412 is about 325.2279647162.

Adding to 34400412 its reverse (21400443), we get a palindrome (55800855).

The spelling of 34400412 in words is "thirty-four million, four hundred thousand, four hundred twelve".