61042004 has 6 divisors (see below), whose sum is σ = 106823514. Its totient is φ = 30521000.

The previous prime is 61041991. The next prime is 61042021. The reversal of 61042004 is 40024016.

It can be written as a sum of positive squares in only one way, i.e., 57729604 + 3312400 = 7598^2 + 1820^2 .

It is a super-2 number, since 2×61042004² = 7452252504672032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7630247 + ... + 7630254.

It is an arithmetic number, because the mean of its divisors is an integer number (17803919).

Almost surely, 2^61042004 is an apocalyptic number.

It is an amenable number.

61042004 is a deficient number, since it is larger than the sum of its proper divisors (45781510).

61042004 is a wasteful number, since it uses less digits than its factorization.

61042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15260505 (or 15260503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 61042004 is about 7812.9382437083. The cubic root of 61042004 is about 393.7400520204.

The spelling of 61042004 in words is "sixty-one million, forty-two thousand, four".