61029642 has 16 divisors (see below), whose sum is σ = 124898400. Its totient is φ = 19870032.

The previous prime is 61029637. The next prime is 61029673. The reversal of 61029642 is 24692016.

61029642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118017 + ... + 118532.

It is an arithmetic number, because the mean of its divisors is an integer number (7806150).

Almost surely, 2^61029642 is an apocalyptic number.

61029642 is an abundant number, since it is smaller than the sum of its proper divisors (63868758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61029642 is a wasteful number, since it uses less digits than its factorization.

61029642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236597.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 61029642 is about 7812.1470800286. The cubic root of 61029642 is about 393.7134706348.

The spelling of 61029642 in words is "sixty-one million, twenty-nine thousand, six hundred forty-two".