54428766 has 32 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 15014496.

The previous prime is 54428761. The next prime is 54428779. The reversal of 54428766 is 66782445.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54428761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21126 + ... + 23561.

It is an arithmetic number, because the mean of its divisors is an integer number (4021920).

Almost surely, 2^54428766 is an apocalyptic number.

54428766 is an abundant number, since it is smaller than the sum of its proper divisors (74272674).

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

54428766 is a wasteful number, since it uses less digits than its factorization.

54428766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44728.

The product of its digits is 322560, while the sum is 42.

The square root of 54428766 is about 7377.5853773440. The cubic root of 54428766 is about 378.9740701600.

The spelling of 54428766 in words is "fifty-four million, four hundred twenty-eight thousand, seven hundred sixty-six".