40305452 has 12 divisors (see below), whose sum is σ = 76946856. Its totient is φ = 18320640.

The previous prime is 40305449. The next prime is 40305481. The reversal of 40305452 is 25450304.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 457973 + ... + 458060.

It is an arithmetic number, because the mean of its divisors is an integer number (6412238).

Almost surely, 2^40305452 is an apocalyptic number.

It is an amenable number.

40305452 is a deficient number, since it is larger than the sum of its proper divisors (36641404).

40305452 is a wasteful number, since it uses less digits than its factorization.

40305452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916048 (or 916046 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40305452 is about 6348.6574958805. The cubic root of 40305452 is about 342.8635087773.

Adding to 40305452 its reverse (25450304), we get a palindrome (65755756).

The spelling of 40305452 in words is "forty million, three hundred five thousand, four hundred fifty-two".