61844042 has 8 divisors (see below), whose sum is σ = 99901956. Its totient is φ = 28543392.

The previous prime is 61844021. The next prime is 61844051. The reversal of 61844042 is 24044816.

It can be written as a sum of positive squares in 2 ways, for example, as 61136761 + 707281 = 7819^2 + 841^2 .

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

It is a super-4 number, since 4×61844042⁴ (a number of 32 digits) contains 4444 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 61843996 and 61844014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189283 + ... + 1189334.

Almost surely, 2^61844042 is an apocalyptic number.

61844042 is a deficient number, since it is larger than the sum of its proper divisors (38057914).

61844042 is a wasteful number, since it uses less digits than its factorization.

61844042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378632.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 61844042 is about 7864.0982954182. The cubic root of 61844042 is about 395.4570194891.

Adding to 61844042 its reverse (24044816), we get a palindrome (85888858).

The spelling of 61844042 in words is "sixty-one million, eight hundred forty-four thousand, forty-two".