248428442 has 16 divisors (see below), whose sum is σ = 387507240. Its totient is φ = 119304192.

The previous prime is 248428423. The next prime is 248428457. The reversal of 248428442 is 244824842.

It can be written as a sum of positive squares in 4 ways, for example, as 234671761 + 13756681 = 15319^2 + 3709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 248428396 and 248428405.

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, 98 + ... + 22290.

Almost surely, 2^248428442 is an apocalyptic number.

248428442 is a deficient number, since it is larger than the sum of its proper divisors (139078798).

248428442 is a wasteful number, since it uses less digits than its factorization.

248428442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22417.

The product of its digits is 131072, while the sum is 38.

The square root of 248428442 is about 15761.6129250784. The cubic root of 248428442 is about 628.6377232468.

The spelling of 248428442 in words is "two hundred forty-eight million, four hundred twenty-eight thousand, four hundred forty-two".