248654638 has 32 divisors (see below), whose sum is σ = 390880512. Its totient is φ = 118540800.

The previous prime is 248654629. The next prime is 248654639. The reversal of 248654638 is 836456842.

It is a super-2 number, since 2×248654638² = 123658257997822088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248654639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178353 + ... + 1178563.

It is an arithmetic number, because the mean of its divisors is an integer number (12215016).

Almost surely, 2^248654638 is an apocalyptic number.

248654638 is a deficient number, since it is larger than the sum of its proper divisors (142225874).

248654638 is a wasteful number, since it uses less digits than its factorization.

248654638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 1105920, while the sum is 46.

The square root of 248654638 is about 15768.7868271468. The cubic root of 248654638 is about 628.8284585245.

The spelling of 248654638 in words is "two hundred forty-eight million, six hundred fifty-four thousand, six hundred thirty-eight".