49129642 has 4 divisors (see below), whose sum is σ = 73694466. Its totient is φ = 24564820.

The previous prime is 49129631. The next prime is 49129651. The reversal of 49129642 is 24692194.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48986001 + 143641 = 6999^2 + 379^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12282409 + ... + 12282412.

Almost surely, 2^49129642 is an apocalyptic number.

49129642 is a deficient number, since it is larger than the sum of its proper divisors (24564824).

49129642 is a wasteful number, since it uses less digits than its factorization.

49129642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24564823.

The product of its digits is 31104, while the sum is 37.

The square root of 49129642 is about 7009.2540259289. The cubic root of 49129642 is about 366.2530076982.

The spelling of 49129642 in words is "forty-nine million, one hundred twenty-nine thousand, six hundred forty-two".