61230064 has 40 divisors (see below), whose sum is σ = 137456480. Its totient is φ = 25878528.

The previous prime is 61230061. The next prime is 61230077. The reversal of 61230064 is 46003216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61230061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (3436412).

Almost surely, 2^61230064 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 61230064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68728240).

61230064 is an abundant number, since it is smaller than the sum of its proper divisors (76226416).

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

61230064 is a wasteful number, since it uses less digits than its factorization.

61230064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577 (or 7571 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 61230064 is about 7824.9641532725. The cubic root of 61230064 is about 394.1439861282.

The spelling of 61230064 in words is "sixty-one million, two hundred thirty thousand, sixty-four".