40130369 has 4 divisors (see below), whose sum is σ = 40145796. Its totient is φ = 40114944.

The previous prime is 40130359. The next prime is 40130371. The reversal of 40130369 is 96303104.

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 26142769 + 13987600 = 5113^2 + 3740^2 .

It is a cyclic number.

It is not a de Polignac number, because 40130369 - 2¹⁶ = 40064833 is a prime.

It is a super-2 number, since 2×40130369² = 3220893032152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40130329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (10036449).

Almost surely, 2^40130369 is an apocalyptic number.

It is an amenable number.

40130369 is a deficient number, since it is larger than the sum of its proper divisors (15427).

40130369 is a wasteful number, since it uses less digits than its factorization.

40130369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 40130369 is about 6334.8535105399. The cubic root of 40130369 is about 342.3663328372.

The spelling of 40130369 in words is "forty million, one hundred thirty thousand, three hundred sixty-nine".