46388978 has 8 divisors (see below), whose sum is σ = 69733872. Its totient is φ = 23144356.

The previous prime is 46388977. The next prime is 46388981. The reversal of 46388978 is 87988364.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (46388977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23900 + ... + 25767.

It is an arithmetic number, because the mean of its divisors is an integer number (8716734).

Almost surely, 2^46388978 is an apocalyptic number.

46388978 is a deficient number, since it is larger than the sum of its proper divisors (23344894).

46388978 is a wasteful number, since it uses less digits than its factorization.

46388978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50136.

The product of its digits is 2322432, while the sum is 53.

The square root of 46388978 is about 6810.9454556618. The cubic root of 46388978 is about 359.3119006343.

The spelling of 46388978 in words is "forty-six million, three hundred eighty-eight thousand, nine hundred seventy-eight".