61304428 has 12 divisors (see below), whose sum is σ = 107339512. Its totient is φ = 30636000.

The previous prime is 61304423. The next prime is 61304429. The reversal of 61304428 is 82440316.

It is a junction number, because it is equal to n+sod(n) for n = 61304396 and 61304405.

It is not an unprimeable number, because it can be changed into a prime (61304423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9451 + ... + 14557.

Almost surely, 2^61304428 is an apocalyptic number.

It is an amenable number.

61304428 is a deficient number, since it is larger than the sum of its proper divisors (46035084).

61304428 is a wasteful number, since it uses less digits than its factorization.

61304428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112 (or 8110 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 61304428 is about 7829.7144264654. The cubic root of 61304428 is about 394.3034843863.

The spelling of 61304428 in words is "sixty-one million, three hundred four thousand, four hundred twenty-eight".