46488978 has 40 divisors (see below), whose sum is σ = 104596272. Its totient is φ = 15432984.

The previous prime is 46488973. The next prime is 46488979. The reversal of 46488978 is 87988464.

46488978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×46488978² = 4322450150968968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (46488971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55801 + ... + 56627.

Almost surely, 2^46488978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46488978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52298136).

46488978 is an abundant number, since it is smaller than the sum of its proper divisors (58107294).

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

46488978 is a wasteful number, since it uses less digits than its factorization.

46488978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1179 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 46488978 is about 6818.2826283456. The cubic root of 46488978 is about 359.5699030285.

The spelling of 46488978 in words is "forty-six million, four hundred eighty-eight thousand, nine hundred seventy-eight".