40326145 has 4 divisors (see below), whose sum is σ = 48391380. Its totient is φ = 32260912.

The previous prime is 40326119. The next prime is 40326157. The reversal of 40326145 is 54162304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6697744 + 33628401 = 2588^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 40326145 - 2¹⁵ = 40293377 is a prime.

It is a super-2 number, since 2×40326145² = 3252395941122050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4032610 + ... + 4032619.

It is an arithmetic number, because the mean of its divisors is an integer number (12097845).

Almost surely, 2^40326145 is an apocalyptic number.

It is an amenable number.

40326145 is a deficient number, since it is larger than the sum of its proper divisors (8065235).

40326145 is an equidigital number, since it uses as much as digits as its factorization.

40326145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065234.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40326145 is about 6350.2870013882. The cubic root of 40326145 is about 342.9221746269.

Adding to 40326145 its reverse (54162304), we get a palindrome (94488449).

The spelling of 40326145 in words is "forty million, three hundred twenty-six thousand, one hundred forty-five".