247873842 has 24 divisors (see below), whose sum is σ = 538799040. Its totient is φ = 82357080.

The previous prime is 247873789. The next prime is 247873853. The reversal of 247873842 is 248378742.

It is a super-2 number, since 2×247873842² = 122882883095681928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16542 + ... + 27737.

It is an arithmetic number, because the mean of its divisors is an integer number (22449960).

Almost surely, 2^247873842 is an apocalyptic number.

247873842 is an abundant number, since it is smaller than the sum of its proper divisors (290925198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247873842 is a wasteful number, since it uses less digits than its factorization.

247873842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44598 (or 44595 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 247873842 is about 15744.0097179848. The cubic root of 247873842 is about 628.1695773814.

The spelling of 247873842 in words is "two hundred forty-seven million, eight hundred seventy-three thousand, eight hundred forty-two".