61464736 has 24 divisors (see below), whose sum is σ = 123295284. Its totient is φ = 30151680.

The previous prime is 61464691. The next prime is 61464743. The reversal of 61464736 is 63746416.

It can be written as a sum of positive squares in 2 ways, for example, as 58064400 + 3400336 = 7620^2 + 1844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61464695 and 61464704.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16425 + ... + 19816.

Almost surely, 2^61464736 is an apocalyptic number.

It is an amenable number.

61464736 is an abundant number, since it is smaller than the sum of its proper divisors (61830548).

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

61464736 is a wasteful number, since it uses less digits than its factorization.

61464736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36304 (or 36296 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 61464736 is about 7839.9448977655. The cubic root of 61464736 is about 394.6468798415.

The spelling of 61464736 in words is "sixty-one million, four hundred sixty-four thousand, seven hundred thirty-six".