61842830 has 32 divisors (see below), whose sum is σ = 131328000. Its totient is φ = 20518560.

The previous prime is 61842827. The next prime is 61842841. The reversal of 61842830 is 3824816.

It is a super-3 number, since 3×61842830³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12080 + ... + 16419.

It is an arithmetic number, because the mean of its divisors is an integer number (4104000).

Almost surely, 2^61842830 is an apocalyptic number.

61842830 is an abundant number, since it is smaller than the sum of its proper divisors (69485170).

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

61842830 is a wasteful number, since it uses less digits than its factorization.

61842830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28544.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 61842830 is about 7864.0212359835. The cubic root of 61842830 is about 395.4544361250.

The spelling of 61842830 in words is "sixty-one million, eight hundred forty-two thousand, eight hundred thirty".