61240442 has 8 divisors (see below), whose sum is σ = 91943796. Its totient is φ = 30592512.

The previous prime is 61240433. The next prime is 61240453. The reversal of 61240442 is 24404216.

It can be written as a sum of positive squares in 2 ways, for example, as 60202081 + 1038361 = 7759^2 + 1019^2 .

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

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, 10973 + ... + 15584.

Almost surely, 2^61240442 is an apocalyptic number.

61240442 is a deficient number, since it is larger than the sum of its proper divisors (30703354).

61240442 is a wasteful number, since it uses less digits than its factorization.

61240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27712.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 61240442 is about 7825.6272592042. The cubic root of 61240442 is about 394.1662529415.

Adding to 61240442 its reverse (24404216), we get a palindrome (85644658).

The spelling of 61240442 in words is "sixty-one million, two hundred forty thousand, four hundred forty-two".