34400550 has 48 divisors (see below), whose sum is σ = 86423040. Its totient is φ = 9054240.

The previous prime is 34400549. The next prime is 34400573. The reversal of 34400550 is 5500443.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10399 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (1800480).

Almost surely, 2^34400550 is an apocalyptic number.

34400550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34400550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43211520).

34400550 is an abundant number, since it is smaller than the sum of its proper divisors (52022490).

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

34400550 is a wasteful number, since it uses less digits than its factorization.

34400550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 34400550 is about 5865.1982063695. The cubic root of 34400550 is about 325.2283996082.

Adding to 34400550 its reverse (5500443), we get a palindrome (39900993).

The spelling of 34400550 in words is "thirty-four million, four hundred thousand, five hundred fifty".