61366042 has 4 divisors (see below), whose sum is σ = 92049066. Its totient is φ = 30683020.

The previous prime is 61366021. The next prime is 61366043. The reversal of 61366042 is 24066316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31236921 + 30129121 = 5589^2 + 5489^2 .

It is a super-2 number, since 2×61366042² = 7531582221491528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61366042.

It is not an unprimeable number, because it can be changed into a prime (61366043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15341509 + ... + 15341512.

Almost surely, 2^61366042 is an apocalyptic number.

61366042 is a deficient number, since it is larger than the sum of its proper divisors (30683024).

61366042 is a wasteful number, since it uses less digits than its factorization.

61366042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30683023.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 61366042 is about 7833.6480645993. The cubic root of 61366042 is about 394.4355383620.

The spelling of 61366042 in words is "sixty-one million, three hundred sixty-six thousand, forty-two".