9142439841 has 16 divisors (see below), whose sum is σ = 13670942400. Its totient is φ = 6037995744.

The previous prime is 9142439833. The next prime is 9142439869. The reversal of 9142439841 is 1489342419.

It is not a de Polignac number, because 9142439841 - 2³ = 9142439833 is a prime.

It is a super-3 number, since 3×9142439841³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9142439881) 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, 1579396 + ... + 1585173.

It is an arithmetic number, because the mean of its divisors is an integer number (854433900).

Almost surely, 2^9142439841 is an apocalyptic number.

It is an amenable number.

9142439841 is a deficient number, since it is larger than the sum of its proper divisors (4528502559).

9142439841 is a wasteful number, since it uses less digits than its factorization.

9142439841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164685 (or 3164679 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 9142439841 is about 95616.1065982087. The cubic root of 9142439841 is about 2091.0000205842. Note that the first 4 decimals are identical.

The spelling of 9142439841 in words is "nine billion, one hundred forty-two million, four hundred thirty-nine thousand, eight hundred forty-one".