40353953 has 4 divisors (see below), whose sum is σ = 40378800. Its totient is φ = 40329108.

The previous prime is 40353949. The next prime is 40353977. The reversal of 40353953 is 35935304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40353953 - 2² = 40353949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40353923) 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 3 ways as a sum of consecutive naturals, for example, 9803 + ... + 13296.

It is an arithmetic number, because the mean of its divisors is an integer number (10094700).

Almost surely, 2^40353953 is an apocalyptic number.

It is an amenable number.

40353953 is a deficient number, since it is larger than the sum of its proper divisors (24847).

40353953 is a wasteful number, since it uses less digits than its factorization.

40353953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24846.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 40353953 is about 6352.4761313995. The cubic root of 40353953 is about 343.0009803144. Note that the first 3 decimals are identical.

The spelling of 40353953 in words is "forty million, three hundred fifty-three thousand, nine hundred fifty-three".