40353693 has 16 divisors (see below), whose sum is σ = 54537600. Its totient is φ = 26539200.

The previous prime is 40353673. The next prime is 40353697. The reversal of 40353693 is 39635304.

It is not a de Polignac number, because 40353693 - 2⁶ = 40353629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40353697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103543 + ... + 103931.

It is an arithmetic number, because the mean of its divisors is an integer number (3408600).

Almost surely, 2^40353693 is an apocalyptic number.

It is an amenable number.

40353693 is a deficient number, since it is larger than the sum of its proper divisors (14183907).

40353693 is a wasteful number, since it uses less digits than its factorization.

40353693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 40353693 is about 6352.4556669055. The cubic root of 40353693 is about 343.0002436625. Note that the first 3 decimals are identical.

Adding to 40353693 its reverse (39635304), we get a palindrome (79988997).

The spelling of 40353693 in words is "forty million, three hundred fifty-three thousand, six hundred ninety-three".