61646046 has 128 divisors (see below), whose sum is σ = 167215104. Its totient is φ = 14661120.

The previous prime is 61646041. The next prime is 61646059. The reversal of 61646046 is 64064616.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61645998 and 61646016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61646041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 369055 + ... + 369221.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^61646046 is an apocalyptic number.

61646046 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 61646046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83607552).

61646046 is an abundant number, since it is smaller than the sum of its proper divisors (105569058).

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

61646046 is a wasteful number, since it uses less digits than its factorization.

61646046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 61646046 is about 7851.4996019869. The cubic root of 61646046 is about 395.0345448611.

The spelling of 61646046 in words is "sixty-one million, six hundred forty-six thousand, forty-six".