3400432 has 40 divisors (see below), whose sum is σ = 7631456. Its totient is φ = 1437696.

The previous prime is 3400409. The next prime is 3400457. The reversal of 3400432 is 2340043.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 10708 + ... + 11020.

Almost surely, 2^3400432 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 3400432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3815728).

3400432 is an abundant number, since it is smaller than the sum of its proper divisors (4231024).

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

3400432 is a wasteful number, since it uses less digits than its factorization.

3400432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3400432 is about 1844.0260301850. The cubic root of 3400432 is about 150.3758279397.

Adding to 3400432 its reverse (2340043), we get a palindrome (5740475).

It can be divided in two parts, 340043 and 2, that multiplied together give a palindrome (680086).

The spelling of 3400432 in words is "three million, four hundred thousand, four hundred thirty-two".