61442074 has 8 divisors (see below), whose sum is σ = 92566260. Its totient is φ = 30586656.

The previous prime is 61442053. The next prime is 61442081. The reversal of 61442074 is 47024416.

It can be written as a sum of positive squares in 2 ways, for example, as 59213025 + 2229049 = 7695^2 + 1493^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66619 + ... + 67534.

Almost surely, 2^61442074 is an apocalyptic number.

61442074 is a deficient number, since it is larger than the sum of its proper divisors (31124186).

61442074 is a wasteful number, since it uses less digits than its factorization.

61442074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134384.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 61442074 is about 7838.4994737513. The cubic root of 61442074 is about 394.5983718810.

The spelling of 61442074 in words is "sixty-one million, four hundred forty-two thousand, seventy-four".