40478480 has 120 divisors (see below), whose sum is σ = 112808256. Its totient is φ = 13224960.

The previous prime is 40478447. The next prime is 40478489. The reversal of 40478480 is 8487404.

It is a super-2 number, since 2×40478480² = 3277014686220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 40478480.

It is not an unprimeable number, because it can be changed into a prime (40478489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 941339 + ... + 941381.

Almost surely, 2^40478480 is an apocalyptic number.

40478480 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 40478480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56404128).

40478480 is an abundant number, since it is smaller than the sum of its proper divisors (72329776).

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

40478480 is a wasteful number, since it uses less digits than its factorization.

40478480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 40478480 is about 6362.2700351368. The cubic root of 40478480 is about 343.3534366796.

The spelling of 40478480 in words is "forty million, four hundred seventy-eight thousand, four hundred eighty".