61920274 has 16 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 28541520.

The previous prime is 61920263. The next prime is 61920283. The reversal of 61920274 is 47202916.

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 7 ways as a sum of consecutive naturals, for example, 37437 + ... + 39055.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2^61920274 is an apocalyptic number.

61920274 is a deficient number, since it is larger than the sum of its proper divisors (38234606).

61920274 is a wasteful number, since it uses less digits than its factorization.

61920274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 61920274 is about 7868.9436393966. The cubic root of 61920274 is about 395.6194393458.

The spelling of 61920274 in words is "sixty-one million, nine hundred twenty thousand, two hundred seventy-four".