61840034 has 4 divisors (see below), whose sum is σ = 92760054. Its totient is φ = 30920016.

The previous prime is 61840007. The next prime is 61840039. The reversal of 61840034 is 43004816.

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

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 13579225 = 6947^2 + 3685^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61839985 and 61840012.

It is not an unprimeable number, because it can be changed into a prime (61840039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15460007 + ... + 15460010.

Almost surely, 2^61840034 is an apocalyptic number.

61840034 is a deficient number, since it is larger than the sum of its proper divisors (30920020).

61840034 is a wasteful number, since it uses less digits than its factorization.

61840034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30920019.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 61840034 is about 7863.8434623281. The cubic root of 61840034 is about 395.4484763542.

The spelling of 61840034 in words is "sixty-one million, eight hundred forty thousand, thirty-four".