61274020 has 12 divisors (see below), whose sum is σ = 128675484. Its totient is φ = 24509600.

The previous prime is 61273999. The next prime is 61274021. The reversal of 61274020 is 2047216.

It can be written as a sum of positive squares in 2 ways, for example, as 13498276 + 47775744 = 3674^2 + 6912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61273982 and 61274000.

It is not an unprimeable number, because it can be changed into a prime (61274021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531831 + ... + 1531870.

It is an arithmetic number, because the mean of its divisors is an integer number (10722957).

Almost surely, 2^61274020 is an apocalyptic number.

It is an amenable number.

61274020 is an abundant number, since it is smaller than the sum of its proper divisors (67401464).

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

61274020 is a wasteful number, since it uses less digits than its factorization.

61274020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063710 (or 3063708 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 61274020 is about 7827.7723523363. The cubic root of 61274020 is about 394.2382799429.

The spelling of 61274020 in words is "sixty-one million, two hundred seventy-four thousand, twenty".