61853460 has 48 divisors (see below), whose sum is σ = 174254976. Its totient is φ = 16392832.

The previous prime is 61853459. The next prime is 61853489. The reversal of 61853460 is 6435816.

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, 6934 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (3630312).

Almost surely, 2^61853460 is an apocalyptic number.

61853460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61853460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87127488).

61853460 is an abundant number, since it is smaller than the sum of its proper divisors (112401516).

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

61853460 is a wasteful number, since it uses less digits than its factorization.

61853460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6350 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61853460 is about 7864.6970698178. The cubic root of 61853460 is about 395.4770926983.

The spelling of 61853460 in words is "sixty-one million, eight hundred fifty-three thousand, four hundred sixty".