40053445 has 8 divisors (see below), whose sum is σ = 50891544. Its totient is φ = 30157824.

The previous prime is 40053439. The next prime is 40053451. The reversal of 40053445 is 54435004.

It is an interprime number because it is at equal distance from previous prime (40053439) and next prime (40053451).

It can be written as a sum of positive squares in 4 ways, for example, as 2819041 + 37234404 = 1679^2 + 6102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40053445 - 2⁵ = 40053413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235524 + ... + 235693.

It is an arithmetic number, because the mean of its divisors is an integer number (6361443).

Almost surely, 2^40053445 is an apocalyptic number.

It is an amenable number.

40053445 is a deficient number, since it is larger than the sum of its proper divisors (10838099).

40053445 is a wasteful number, since it uses less digits than its factorization.

40053445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471239.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40053445 is about 6328.7791081693. The cubic root of 40053445 is about 342.1474376553.

Adding to 40053445 its reverse (54435004), we get a palindrome (94488449).

The spelling of 40053445 in words is "forty million, fifty-three thousand, four hundred forty-five".