40266145 has 8 divisors (see below), whose sum is σ = 48380904. Its totient is φ = 32171904.

The previous prime is 40266119. The next prime is 40266151. The reversal of 40266145 is 54166204.

It can be written as a sum of positive squares in 4 ways, for example, as 1937664 + 38328481 = 1392^2 + 6191^2 .

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 40266145 - 2²⁵ = 6711713 is a prime.

It is a super-2 number, since 2×40266145² = 3242724866322050, which contains 22 as substring.

It is a Duffinian 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, 414 + ... + 8983.

It is an arithmetic number, because the mean of its divisors is an integer number (6047613).

Almost surely, 2^40266145 is an apocalyptic number.

It is an amenable number.

40266145 is a deficient number, since it is larger than the sum of its proper divisors (8114759).

40266145 is an equidigital number, since it uses as much as digits as its factorization.

40266145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10259.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40266145 is about 6345.5610469052. The cubic root of 40266145 is about 342.7520158429.

The spelling of 40266145 in words is "forty million, two hundred sixty-six thousand, one hundred forty-five".