369249805 has 8 divisors (see below), whose sum is σ = 443214072. Its totient is φ = 295323648.

The previous prime is 369249799. The next prime is 369249821. The reversal of 369249805 is 508942963.

It can be written as a sum of positive squares in 4 ways, for example, as 11812969 + 357436836 = 3437^2 + 18906^2 .

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 369249805 - 2²³ = 360861197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20269 + ... + 33901.

It is an arithmetic number, because the mean of its divisors is an integer number (55401759).

Almost surely, 2^369249805 is an apocalyptic number.

It is an amenable number.

369249805 is a deficient number, since it is larger than the sum of its proper divisors (73964267).

369249805 is a wasteful number, since it uses less digits than its factorization.

369249805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19055.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 369249805 is about 19215.8737766462. The cubic root of 369249805 is about 717.4199095571.

The spelling of 369249805 in words is "three hundred sixty-nine million, two hundred forty-nine thousand, eight hundred five".