61949328 has 60 divisors (see below), whose sum is σ = 186171120. Its totient is φ = 17699136.

The previous prime is 61949323. The next prime is 61949347. The reversal of 61949328 is 82394916.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 61949328.

It is not an unprimeable number, because it can be changed into a prime (61949323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10818 + ... + 15521.

It is an arithmetic number, because the mean of its divisors is an integer number (3102852).

Almost surely, 2^61949328 is an apocalyptic number.

It is an amenable number.

61949328 is an abundant number, since it is smaller than the sum of its proper divisors (124221792).

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

61949328 is a wasteful number, since it uses less digits than its factorization.

61949328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26364 (or 26351 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 61949328 is about 7870.7895410816. The cubic root of 61949328 is about 395.6813066963.

The spelling of 61949328 in words is "sixty-one million, nine hundred forty-nine thousand, three hundred twenty-eight".