40153445 has 8 divisors (see below), whose sum is σ = 48244344. Its totient is φ = 32082624.

The previous prime is 40153427. The next prime is 40153447. The reversal of 40153445 is 54435104.

It can be written as a sum of positive squares in 4 ways, for example, as 3587236 + 36566209 = 1894^2 + 6047^2 .

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 40153445 - 2¹⁰ = 40152421 is a prime.

It is a super-2 number, since 2×40153445² = 3224598290736050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40153447) 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, 194 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (6030543).

Almost surely, 2^40153445 is an apocalyptic number.

It is an amenable number.

40153445 is a deficient number, since it is larger than the sum of its proper divisors (8090899).

40153445 is an equidigital number, since it uses as much as digits as its factorization.

40153445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10039.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 40153445 is about 6336.6746010822. The cubic root of 40153445 is about 342.4319434280.

Adding to 40153445 its reverse (54435104), we get a palindrome (94588549).

The spelling of 40153445 in words is "forty million, one hundred fifty-three thousand, four hundred forty-five".