49642 has 4 divisors (see below), whose sum is σ = 74466. Its totient is φ = 24820.

The previous prime is 49639. The next prime is 49663. The reversal of 49642 is 24694.

49642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24694 = 2 ⋅12347.

It can be written as a sum of positive squares in only one way, i.e., 47961 + 1681 = 219^2 + 41^2 .

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12409 + ... + 12412.

2⁴⁹⁶⁴² is an apocalyptic number.

49642 is a deficient number, since it is larger than the sum of its proper divisors (24824).

49642 is a wasteful number, since it uses less digits than its factorization.

49642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24823.

The product of its digits is 1728, while the sum is 25.

The square root of 49642 is about 222.8048473440. The cubic root of 49642 is about 36.7521787469.

The spelling of 49642 in words is "forty-nine thousand, six hundred forty-two".