61288446 has 8 divisors (see below), whose sum is σ = 122576904. Its totient is φ = 20429480.

The previous prime is 61288441. The next prime is 61288483. The reversal of 61288446 is 64488216.

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

61288446 is an admirable number.

It is a super-2 number, since 2×61288446² = 7512547226189832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61288441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5107365 + ... + 5107376.

It is an arithmetic number, because the mean of its divisors is an integer number (15322113).

Almost surely, 2^61288446 is an apocalyptic number.

61288446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61288446 is a wasteful number, since it uses less digits than its factorization.

61288446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214746.

The product of its digits is 73728, while the sum is 39.

The square root of 61288446 is about 7828.6937607752. The cubic root of 61288446 is about 394.2692165735.

The spelling of 61288446 in words is "sixty-one million, two hundred eighty-eight thousand, four hundred forty-six".