61073040 has 80 divisors (see below), whose sum is σ = 216379008. Its totient is φ = 13959168.

The previous prime is 61072969. The next prime is 61073057. The reversal of 61073040 is 4037016.

61073040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 61072998 and 61073016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16497 + ... + 19856.

Almost surely, 2^61073040 is an apocalyptic number.

61073040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61073040 is an abundant number, since it is smaller than the sum of its proper divisors (155305968).

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

61073040 is a wasteful number, since it uses less digits than its factorization.

61073040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36376 (or 36370 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 61073040 is about 7814.9241838933. The cubic root of 61073040 is about 393.8067713557.

The spelling of 61073040 in words is "sixty-one million, seventy-three thousand, forty".