61840942 has 4 divisors (see below), whose sum is σ = 92761416. Its totient is φ = 30920470.

The previous prime is 61840927. The next prime is 61840957. The reversal of 61840942 is 24904816.

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

It is an interprime number because it is at equal distance from previous prime (61840927) and next prime (61840957).

It is a junction number, because it is equal to n+sod(n) for n = 61840898 and 61840907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15460234 + ... + 15460237.

It is an arithmetic number, because the mean of its divisors is an integer number (23190354).

Almost surely, 2^61840942 is an apocalyptic number.

61840942 is a deficient number, since it is larger than the sum of its proper divisors (30920474).

61840942 is a wasteful number, since it uses less digits than its factorization.

61840942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30920473.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 61840942 is about 7863.9011946997. The cubic root of 61840942 is about 395.4504118074.

The spelling of 61840942 in words is "sixty-one million, eight hundred forty thousand, nine hundred forty-two".