61228104 has 64 divisors (see below), whose sum is σ = 177085440. Its totient is φ = 17279040.

The previous prime is 61228061. The next prime is 61228117. The reversal of 61228104 is 40182216.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11749 + ... + 16139.

It is an arithmetic number, because the mean of its divisors is an integer number (2766960).

Almost surely, 2^61228104 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 61228104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88542720).

61228104 is an abundant number, since it is smaller than the sum of its proper divisors (115857336).

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

61228104 is a wasteful number, since it uses less digits than its factorization.

61228104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490 (or 4486 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 61228104 is about 7824.8389120799. The cubic root of 61228104 is about 394.1397805119.

The spelling of 61228104 in words is "sixty-one million, two hundred twenty-eight thousand, one hundred four".