554778042 has 64 divisors (see below), whose sum is σ = 1388077824. Its totient is φ = 143907840.

The previous prime is 554778041. The next prime is 554778079. The reversal of 554778042 is 240877455.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 554777985 and 554778003.

It is not an unprimeable number, because it can be changed into a prime (554778041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24978 + ... + 41634.

It is an arithmetic number, because the mean of its divisors is an integer number (21688716).

Almost surely, 2^554778042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554778042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694038912).

554778042 is an abundant number, since it is smaller than the sum of its proper divisors (833299782).

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

554778042 is a wasteful number, since it uses less digits than its factorization.

554778042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16743.

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 554778042 is about 23553.7267114994. The cubic root of 554778042 is about 821.6870097334.

The spelling of 554778042 in words is "five hundred fifty-four million, seven hundred seventy-eight thousand, forty-two".