61033420 has 120 divisors (see below), whose sum is σ = 158110848. Its totient is φ = 19756800.

The previous prime is 61033409. The next prime is 61033433. The reversal of 61033420 is 2433016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1488600 + ... + 1488640.

Almost surely, 2^61033420 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 61033420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79055424).

61033420 is an abundant number, since it is smaller than the sum of its proper divisors (97077428).

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

61033420 is a wasteful number, since it uses less digits than its factorization.

61033420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 61033420 is about 7812.3888792097. The cubic root of 61033420 is about 393.7215946587.

Adding to 61033420 its reverse (2433016), we get a palindrome (63466436).

The spelling of 61033420 in words is "sixty-one million, thirty-three thousand, four hundred twenty".