40405360 has 20 divisors (see below), whose sum is σ = 93942648. Its totient is φ = 16162112.

The previous prime is 40405357. The next prime is 40405397. The reversal of 40405360 is 6350404.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252454 + ... + 252613.

Almost surely, 2^40405360 is an apocalyptic number.

40405360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40405360 is an abundant number, since it is smaller than the sum of its proper divisors (53537288).

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

40405360 is a wasteful number, since it uses less digits than its factorization.

40405360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505080 (or 505074 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40405360 is about 6356.5210610836. The cubic root of 40405360 is about 343.1465684410.

Adding to 40405360 its reverse (6350404), we get a palindrome (46755764).

The spelling of 40405360 in words is "forty million, four hundred five thousand, three hundred sixty".