49381810 has 8 divisors (see below), whose sum is σ = 88887276. Its totient is φ = 19752720.

The previous prime is 49381781. The next prime is 49381811. The reversal of 49381810 is 1818394.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48958009 + 423801 = 6997^2 + 651^2 .

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

It is a super-2 number, since 2×49381810² = 4877126317752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49381811) 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, 2469081 + ... + 2469100.

Almost surely, 2^49381810 is an apocalyptic number.

49381810 is a deficient number, since it is larger than the sum of its proper divisors (39505466).

49381810 is a wasteful number, since it uses less digits than its factorization.

49381810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938188.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 49381810 is about 7027.2192224236. The cubic root of 49381810 is about 366.8785616372.

The spelling of 49381810 in words is "forty-nine million, three hundred eighty-one thousand, eight hundred ten".