40453378 has 16 divisors (see below), whose sum is σ = 69459840. Its totient is φ = 17309376.

The previous prime is 40453373. The next prime is 40453381. The reversal of 40453378 is 87335404.

It is a happy number.

It is a super-2 number, since 2×40453378² = 3272951583221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40453373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8458 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (4341240).

Almost surely, 2^40453378 is an apocalyptic number.

40453378 is a deficient number, since it is larger than the sum of its proper divisors (29006462).

40453378 is a wasteful number, since it uses less digits than its factorization.

40453378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 40453378 is about 6360.2970056437. The cubic root of 40453378 is about 343.2824471876.

The spelling of 40453378 in words is "forty million, four hundred fifty-three thousand, three hundred seventy-eight".