61073472 has 84 divisors (see below), whose sum is σ = 167475408. Its totient is φ = 19641600.

The previous prime is 61073447. The next prime is 61073489. The reversal of 61073472 is 27437016.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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 11 ways as a sum of consecutive naturals, for example, 184347 + ... + 184677.

Almost surely, 2^61073472 is an apocalyptic number.

61073472 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61073472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83737704).

61073472 is an abundant number, since it is smaller than the sum of its proper divisors (106401936).

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

61073472 is a wasteful number, since it uses less digits than its factorization.

61073472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 61073472 is about 7814.9518232680. The cubic root of 61073472 is about 393.8076998839.

The spelling of 61073472 in words is "sixty-one million, seventy-three thousand, four hundred seventy-two".