9401642 has 4 divisors (see below), whose sum is σ = 14102466. Its totient is φ = 4700820.

The previous prime is 9401633. The next prime is 9401647. The reversal of 9401642 is 2461049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2461049 = 73 ⋅33713.

It can be written as a sum of positive squares in only one way, i.e., 9006001 + 395641 = 3001^2 + 629^2 .

It is not an unprimeable number, because it can be changed into a prime (9401647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2350409 + ... + 2350412.

Almost surely, 2^9401642 is an apocalyptic number.

9401642 is a deficient number, since it is larger than the sum of its proper divisors (4700824).

9401642 is a wasteful number, since it uses less digits than its factorization.

9401642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700823.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 9401642 is about 3066.2097123321. The cubic root of 9401642 is about 211.0577172653.

The spelling of 9401642 in words is "nine million, four hundred one thousand, six hundred forty-two".