49031428 has 6 divisors (see below), whose sum is σ = 85805006. Its totient is φ = 24515712.

The previous prime is 49031369. The next prime is 49031443. The reversal of 49031428 is 82413094.

It can be written as a sum of positive squares in only one way, i.e., 34833604 + 14197824 = 5902^2 + 3768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49031428.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128925 + ... + 6128932.

Almost surely, 2^49031428 is an apocalyptic number.

It is an amenable number.

49031428 is a deficient number, since it is larger than the sum of its proper divisors (36773578).

49031428 is a wasteful number, since it uses less digits than its factorization.

49031428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257861 (or 12257859 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 49031428 is about 7002.2444973023. The cubic root of 49031428 is about 366.0087887445.

The spelling of 49031428 in words is "forty-nine million, thirty-one thousand, four hundred twenty-eight".