61839042 has 24 divisors (see below), whose sum is σ = 129295824. Its totient is φ = 19715784.

The previous prime is 61838999. The next prime is 61839059. The reversal of 61839042 is 24093816.

It is a junction number, because it is equal to n+sod(n) for n = 61838994 and 61839012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6568 + ... + 12915.

It is an arithmetic number, because the mean of its divisors is an integer number (5387326).

Almost surely, 2^61839042 is an apocalyptic number.

61839042 is an abundant number, since it is smaller than the sum of its proper divisors (67456782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61839042 is a wasteful number, since it uses less digits than its factorization.

61839042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19534 (or 19511 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 61839042 is about 7863.7803885917. The cubic root of 61839042 is about 395.4463618287.

It can be divided in two parts, 6183 and 9042, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 61839042 in words is "sixty-one million, eight hundred thirty-nine thousand, forty-two".