40840480 has 24 divisors (see below), whose sum is σ = 96486012. Its totient is φ = 16336128.

The previous prime is 40840441. The next prime is 40840483. The reversal of 40840480 is 8404804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39087504 + 1752976 = 6252^2 + 1324^2 .

It is not an unprimeable number, because it can be changed into a prime (40840483) 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, 127467 + ... + 127786.

Almost surely, 2^40840480 is an apocalyptic number.

40840480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40840480 is an abundant number, since it is smaller than the sum of its proper divisors (55645532).

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

40840480 is a wasteful number, since it uses less digits than its factorization.

40840480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255268 (or 255260 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 40840480 is about 6390.6556784105. The cubic root of 40840480 is about 344.3739398608.

The spelling of 40840480 in words is "forty million, eight hundred forty thousand, four hundred eighty".