61489418 has 8 divisors (see below), whose sum is σ = 92297280. Its totient is φ = 30723660.

The previous prime is 61489361. The next prime is 61489427. The reversal of 61489418 is 81498416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6578 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (11537160).

Almost surely, 2^61489418 is an apocalyptic number.

61489418 is a deficient number, since it is larger than the sum of its proper divisors (30807862).

61489418 is a wasteful number, since it uses less digits than its factorization.

61489418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21052.

The product of its digits is 55296, while the sum is 41.

The square root of 61489418 is about 7841.5188579764. The cubic root of 61489418 is about 394.6996980447.

The spelling of 61489418 in words is "sixty-one million, four hundred eighty-nine thousand, four hundred eighteen".