43778480 has 40 divisors (see below), whose sum is σ = 103465104. Its totient is φ = 17222400.

The previous prime is 43778461. The next prime is 43778503. The reversal of 43778480 is 8487734.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×43778480² = 3833110622220800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 9365.

Almost surely, 2^43778480 is an apocalyptic number.

43778480 is a gapful number since it is divisible by the number (40) 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 43778480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51732552).

43778480 is an abundant number, since it is smaller than the sum of its proper divisors (59686624).

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

43778480 is a wasteful number, since it uses less digits than its factorization.

43778480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045 (or 9039 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 43778480 is about 6616.5308130470. The cubic root of 43778480 is about 352.4413798536.

The spelling of 43778480 in words is "forty-three million, seven hundred seventy-eight thousand, four hundred eighty".