49931945 has 8 divisors (see below), whose sum is σ = 68478144. Its totient is φ = 34239024.

The previous prime is 49931933. The next prime is 49931963. The reversal of 49931945 is 54913994.

It is a happy number.

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 49931945 - 2⁴ = 49931929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49931896 and 49931905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713279 + ... + 713348.

It is an arithmetic number, because the mean of its divisors is an integer number (8559768).

Almost surely, 2^49931945 is an apocalyptic number.

It is an amenable number.

49931945 is a deficient number, since it is larger than the sum of its proper divisors (18546199).

49931945 is a wasteful number, since it uses less digits than its factorization.

49931945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426639.

The product of its digits is 174960, while the sum is 44.

The square root of 49931945 is about 7066.2539580742. The cubic root of 49931945 is about 368.2359294641.

The spelling of 49931945 in words is "forty-nine million, nine hundred thirty-one thousand, nine hundred forty-five".