45866890 has 8 divisors (see below), whose sum is σ = 82560420. Its totient is φ = 18346752.

The previous prime is 45866881. The next prime is 45866911. The reversal of 45866890 is 9866854.

It can be written as a sum of positive squares in 2 ways, for example, as 45846441 + 20449 = 6771^2 + 143^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45866890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293335 + ... + 2293354.

Almost surely, 2^45866890 is an apocalyptic number.

45866890 is a deficient number, since it is larger than the sum of its proper divisors (36693530).

45866890 is a wasteful number, since it uses less digits than its factorization.

45866890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586696.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 45866890 is about 6772.5098744852. The cubic root of 45866890 is about 357.9588448680.

It can be divided in two parts, 4586 and 6890, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 45866890 in words is "forty-five million, eight hundred sixty-six thousand, eight hundred ninety".