34040978 has 4 divisors (see below), whose sum is σ = 51061470. Its totient is φ = 17020488.

The previous prime is 34040977. The next prime is 34041023. The reversal of 34040978 is 87904043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87904043 = 439 ⋅200237.

It can be written as a sum of positive squares in only one way, i.e., 32410249 + 1630729 = 5693^2 + 1277^2 .

It is not an unprimeable number, because it can be changed into a prime (34040977) by changing a digit.

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 as a sum of consecutive naturals, namely, 8510243 + ... + 8510246.

Almost surely, 2^34040978 is an apocalyptic number.

34040978 is a deficient number, since it is larger than the sum of its proper divisors (17020492).

34040978 is a wasteful number, since it uses less digits than its factorization.

34040978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17020491.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 34040978 is about 5834.4646712445. The cubic root of 34040978 is about 324.0912776918.

The spelling of 34040978 in words is "thirty-four million, forty thousand, nine hundred seventy-eight".