61368242 has 16 divisors (see below), whose sum is σ = 99502872. Its totient is φ = 28218240.

The previous prime is 61368187. The next prime is 61368247. The reversal of 61368242 is 24286316.

It can be written as a sum of positive squares in 4 ways, for example, as 31348801 + 30019441 = 5599^2 + 5479^2 .

It is a super-2 number, since 2×61368242² = 7532122252341128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61368199 and 61368208.

It is not an unprimeable number, because it can be changed into a prime (61368247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2942 + ... + 11462.

Almost surely, 2^61368242 is an apocalyptic number.

61368242 is a deficient number, since it is larger than the sum of its proper divisors (38134630).

61368242 is a wasteful number, since it uses less digits than its factorization.

61368242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8813.

The product of its digits is 13824, while the sum is 32.

The square root of 61368242 is about 7833.7884832308. The cubic root of 61368242 is about 394.4402518690.

The spelling of 61368242 in words is "sixty-one million, three hundred sixty-eight thousand, two hundred forty-two".