61434064 has 40 divisors (see below), whose sum is σ = 127134720. Its totient is φ = 28694400.

The previous prime is 61434017. The next prime is 61434067. The reversal of 61434064 is 46043416.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61434067) 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, 12249 + ... + 16519.

It is an arithmetic number, because the mean of its divisors is an integer number (3178368).

Almost surely, 2^61434064 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 61434064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63567360).

61434064 is an abundant number, since it is smaller than the sum of its proper divisors (65700656).

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

61434064 is a wasteful number, since it uses less digits than its factorization.

61434064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339 (or 4333 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 61434064 is about 7837.9885174705. The cubic root of 61434064 is about 394.5812236408.

The spelling of 61434064 in words is "sixty-one million, four hundred thirty-four thousand, sixty-four".