344400432 has 40 divisors (see below), whose sum is σ = 890501040. Its totient is φ = 114696960.

The previous prime is 344400409. The next prime is 344400457. The reversal of 344400432 is 234004443.

It is a happy number.

It is a super-2 number, since 2×344400432² = 237223315123573248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 66082 + ... + 71102.

It is an arithmetic number, because the mean of its divisors is an integer number (22262526).

Almost surely, 2^344400432 is an apocalyptic number.

It is an amenable number.

344400432 is an abundant number, since it is smaller than the sum of its proper divisors (546100608).

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

344400432 is a wasteful number, since it uses less digits than its factorization.

344400432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 344400432 is about 18558.0287746301. The cubic root of 344400432 is about 700.9513812067.

Adding to 344400432 its reverse (234004443), we get a palindrome (578404875).

The spelling of 344400432 in words is "three hundred forty-four million, four hundred thousand, four hundred thirty-two".