61474320 has 60 divisors (see below), whose sum is σ = 206453676. Its totient is φ = 16392960.

The previous prime is 61474319. The next prime is 61474327. The reversal of 61474320 is 2347416.

61474320 is a `hidden beast` number, since 614 + 7 + 43 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 49112064 = 3516^2 + 7008^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (61474327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41971 + ... + 43410.

Almost surely, 2^61474320 is an apocalyptic number.

61474320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61474320 is an abundant number, since it is smaller than the sum of its proper divisors (144979356).

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

61474320 is a wasteful number, since it uses less digits than its factorization.

61474320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85400 (or 85391 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 61474320 is about 7840.5561027264. The cubic root of 61474320 is about 394.6673907847.

The spelling of 61474320 in words is "sixty-one million, four hundred seventy-four thousand, three hundred twenty".