61805492 has 24 divisors (see below), whose sum is σ = 125180160. Its totient is φ = 26151840.

The previous prime is 61805479. The next prime is 61805501. The reversal of 61805492 is 29450816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11759 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (5215840).

Almost surely, 2^61805492 is an apocalyptic number.

It is an amenable number.

61805492 is an abundant number, since it is smaller than the sum of its proper divisors (63374668).

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

61805492 is a wasteful number, since it uses less digits than its factorization.

61805492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28031 (or 28029 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 61805492 is about 7861.6469012542. The cubic root of 61805492 is about 395.3748340632.

The spelling of 61805492 in words is "sixty-one million, eight hundred five thousand, four hundred ninety-two".