61440936 has 16 divisors (see below), whose sum is σ = 153602400. Its totient is φ = 20480304.

The previous prime is 61440923. The next prime is 61440959. The reversal of 61440936 is 63904416.

It is a junction number, because it is equal to n+sod(n) for n = 61440897 and 61440906.

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, 1279996 + ... + 1280043.

It is an arithmetic number, because the mean of its divisors is an integer number (9600150).

Almost surely, 2^61440936 is an apocalyptic number.

It is an amenable number.

61440936 is an abundant number, since it is smaller than the sum of its proper divisors (92161464).

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

61440936 is a wasteful number, since it uses less digits than its factorization.

61440936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560048 (or 2560044 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 61440936 is about 7838.4268829913. The cubic root of 61440936 is about 394.5959356800.

The spelling of 61440936 in words is "sixty-one million, four hundred forty thousand, nine hundred thirty-six".