942249394 has 4 divisors (see below), whose sum is σ = 1413374094. Its totient is φ = 471124696.

The previous prime is 942249389. The next prime is 942249397. The reversal of 942249394 is 493942249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493942249 = 4789 ⋅103141.

It can be written as a sum of positive squares in only one way, i.e., 843147369 + 99102025 = 29037^2 + 9955^2 .

It is not an unprimeable number, because it can be changed into a prime (942249397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235562347 + ... + 235562350.

Almost surely, 2^942249394 is an apocalyptic number.

942249394 is a deficient number, since it is larger than the sum of its proper divisors (471124700).

942249394 is a wasteful number, since it uses less digits than its factorization.

942249394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471124699.

The product of its digits is 559872, while the sum is 46.

The square root of 942249394 is about 30696.0810853764. The cubic root of 942249394 is about 980.3668604283.

The spelling of 942249394 in words is "nine hundred forty-two million, two hundred forty-nine thousand, three hundred ninety-four".