554243904 has 112 divisors (see below), whose sum is σ = 1669328640. Its totient is φ = 180218880.

The previous prime is 554243861. The next prime is 554243923. The reversal of 554243904 is 409342455.

It is a happy number.

It is a super-2 number, since 2×554243904² = 614372610242322432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 66937 + ... + 74759.

It is an arithmetic number, because the mean of its divisors is an integer number (14904720).

Almost surely, 2^554243904 is an apocalyptic number.

554243904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554243904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834664320).

554243904 is an abundant number, since it is smaller than the sum of its proper divisors (1115084736).

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

554243904 is a wasteful number, since it uses less digits than its factorization.

554243904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7885 (or 7869 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 554243904 is about 23542.3852657287. The cubic root of 554243904 is about 821.4232194405.

The spelling of 554243904 in words is "five hundred fifty-four million, two hundred forty-three thousand, nine hundred four".