49166690 has 8 divisors (see below), whose sum is σ = 88500060. Its totient is φ = 19666672.

The previous prime is 49166641. The next prime is 49166693. The reversal of 49166690 is 9666194.

It can be written as a sum of positive squares in 2 ways, for example, as 43256929 + 5909761 = 6577^2 + 2431^2 .

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

It is a super-2 number, since 2×49166690² = 4834726811112200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49166693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2458325 + ... + 2458344.

Almost surely, 2^49166690 is an apocalyptic number.

49166690 is a deficient number, since it is larger than the sum of its proper divisors (39333370).

49166690 is a wasteful number, since it uses less digits than its factorization.

49166690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916676.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 49166690 is about 7011.8963198268. The cubic root of 49166690 is about 366.3450467170.

The spelling of 49166690 in words is "forty-nine million, one hundred sixty-six thousand, six hundred ninety".