61895430 has 48 divisors (see below), whose sum is σ = 161791344. Its totient is φ = 16416960.

The previous prime is 61895429. The next prime is 61895441. The reversal of 61895430 is 3459816.

61895430 is a `hidden beast` number, since 618 + 9 + 5 + 4 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15985 + ... + 19475.

It is an arithmetic number, because the mean of its divisors is an integer number (3370653).

Almost surely, 2^61895430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61895430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80895672).

61895430 is an abundant number, since it is smaller than the sum of its proper divisors (99895914).

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

61895430 is a wasteful number, since it uses less digits than its factorization.

61895430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 61895430 is about 7867.3648701455. The cubic root of 61895430 is about 395.5665213835.

The spelling of 61895430 in words is "sixty-one million, eight hundred ninety-five thousand, four hundred thirty".