61836460 has 48 divisors (see below), whose sum is σ = 150312960. Its totient is φ = 20928960.

The previous prime is 61836449. The next prime is 61836461. The reversal of 61836460 is 6463816.

It is not an unprimeable number, because it can be changed into a prime (61836461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8265 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (3131520).

Almost surely, 2^61836460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61836460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75156480).

61836460 is an abundant number, since it is smaller than the sum of its proper divisors (88476500).

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

61836460 is a wasteful number, since it uses less digits than its factorization.

61836460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 61836460 is about 7863.6162164745. The cubic root of 61836460 is about 395.4408579880.

The spelling of 61836460 in words is "sixty-one million, eight hundred thirty-six thousand, four hundred sixty".