42994147 has 8 divisors (see below), whose sum is σ = 49184352. Its totient is φ = 36816000.

The previous prime is 42994129. The next prime is 42994151. The reversal of 42994147 is 74149924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42994147 - 2¹⁵ = 42961379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42994247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6747 + ... + 11467.

It is an arithmetic number, because the mean of its divisors is an integer number (6148044).

Almost surely, 2^42994147 is an apocalyptic number.

42994147 is a deficient number, since it is larger than the sum of its proper divisors (6190205).

42994147 is a wasteful number, since it uses less digits than its factorization.

42994147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6029.

The product of its digits is 72576, while the sum is 40.

The square root of 42994147 is about 6556.9922220482. The cubic root of 42994147 is about 350.3239096671.

The spelling of 42994147 in words is "forty-two million, nine hundred ninety-four thousand, one hundred forty-seven".