4247405015 has 80 divisors (see below), whose sum is σ = 6253445376. Its totient is φ = 2765952000.

The previous prime is 4247405011. The next prime is 4247405017. The reversal of 4247405015 is 5105047424.

It is not a de Polignac number, because 4247405015 - 2² = 4247405011 is a prime.

It is a super-2 number, since 2×4247405015² = 36080898722894300450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247405011) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 37587599 + ... + 37587711.

Almost surely, 2^4247405015 is an apocalyptic number.

4247405015 is a deficient number, since it is larger than the sum of its proper divisors (2006040361).

4247405015 is a wasteful number, since it uses less digits than its factorization.

4247405015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 4247405015 is about 65172.1183866230. The cubic root of 4247405015 is about 1619.4761572811.

The spelling of 4247405015 in words is "four billion, two hundred forty-seven million, four hundred five thousand, fifteen".