61042278 has 32 divisors (see below), whose sum is σ = 133488000. Its totient is φ = 18455360.

The previous prime is 61042277. The next prime is 61042283. The reversal of 61042278 is 87224016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61042271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39973 + ... + 41471.

It is an arithmetic number, because the mean of its divisors is an integer number (4171500).

Almost surely, 2^61042278 is an apocalyptic number.

61042278 is an abundant number, since it is smaller than the sum of its proper divisors (72445722).

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

61042278 is a wasteful number, since it uses less digits than its factorization.

61042278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 61042278 is about 7812.9557787050. The cubic root of 61042278 is about 393.7406411482.

The spelling of 61042278 in words is "sixty-one million, forty-two thousand, two hundred seventy-eight".