247416742 has 32 divisors (see below), whose sum is σ = 405347328. Its totient is φ = 112811136.

The previous prime is 247416737. The next prime is 247416751. The reversal of 247416742 is 247614742.

It is a super-2 number, since 2×247416742² = 122430088443789128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170263 + ... + 171709.

It is an arithmetic number, because the mean of its divisors is an integer number (12667104).

Almost surely, 2^247416742 is an apocalyptic number.

247416742 is a deficient number, since it is larger than the sum of its proper divisors (157930586).

247416742 is a wasteful number, since it uses less digits than its factorization.

247416742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its digits is 75264, while the sum is 37.

The square root of 247416742 is about 15729.4863870376. The cubic root of 247416742 is about 627.7832074527.

The spelling of 247416742 in words is "two hundred forty-seven million, four hundred sixteen thousand, seven hundred forty-two".