248937638 has 8 divisors (see below), whose sum is σ = 379735560. Its totient is φ = 122359120.

The previous prime is 248937617. The next prime is 248937641. The reversal of 248937638 is 836739842.

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

It is a super-2 number, since 2×248937638² = 123939895226038088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054703 + ... + 1054938.

It is an arithmetic number, because the mean of its divisors is an integer number (47466945).

Almost surely, 2^248937638 is an apocalyptic number.

248937638 is a deficient number, since it is larger than the sum of its proper divisors (130797922).

248937638 is a wasteful number, since it uses less digits than its factorization.

248937638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109702.

The product of its digits is 1741824, while the sum is 50.

The square root of 248937638 is about 15777.7576987353. The cubic root of 248937638 is about 629.0669298233.

The spelling of 248937638 in words is "two hundred forty-eight million, nine hundred thirty-seven thousand, six hundred thirty-eight".