61842429 has 24 divisors (see below), whose sum is σ = 100088352. Its totient is φ = 36465120.

The previous prime is 61842421. The next prime is 61842449. The reversal of 61842429 is 92424816.

It is not a de Polignac number, because 61842429 - 2³ = 61842421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61842393 and 61842402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61842421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4779 + ... + 12104.

It is an arithmetic number, because the mean of its divisors is an integer number (4170348).

Almost surely, 2^61842429 is an apocalyptic number.

It is an amenable number.

61842429 is a deficient number, since it is larger than the sum of its proper divisors (38245923).

61842429 is a wasteful number, since it uses less digits than its factorization.

61842429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16937 (or 16934 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 61842429 is about 7863.9957400802. The cubic root of 61842429 is about 395.4535813907.

The spelling of 61842429 in words is "sixty-one million, eight hundred forty-two thousand, four hundred twenty-nine".