247496142 has 32 divisors (see below), whose sum is σ = 499917600. Its totient is φ = 81682560.

The previous prime is 247496113. The next prime is 247496143. The reversal of 247496142 is 241694742.

It is a super-2 number, since 2×247496142² = 122508680609768328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247496142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247496143) 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, 378688 + ... + 379340.

It is an arithmetic number, because the mean of its divisors is an integer number (15622425).

Almost surely, 2^247496142 is an apocalyptic number.

247496142 is an abundant number, since it is smaller than the sum of its proper divisors (252421458).

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

247496142 is a wasteful number, since it uses less digits than its factorization.

247496142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188.

The product of its digits is 96768, while the sum is 39.

The square root of 247496142 is about 15732.0101067855. The cubic root of 247496142 is about 627.8503555030.

The spelling of 247496142 in words is "two hundred forty-seven million, four hundred ninety-six thousand, one hundred forty-two".