34392978 has 32 divisors (see below), whose sum is σ = 76627200. Its totient is φ = 11434608.

The previous prime is 34392977. The next prime is 34392979. The reversal of 34392978 is 87929343.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (34392977) and next prime (34392979).

It is not an unprimeable number, because it can be changed into a prime (34392977) 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 in 15 ways as a sum of consecutive naturals, for example, 32583 + ... + 33621.

It is an arithmetic number, because the mean of its divisors is an integer number (2394600).

Almost surely, 2^34392978 is an apocalyptic number.

34392978 is an abundant number, since it is smaller than the sum of its proper divisors (42234222).

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

34392978 is a wasteful number, since it uses less digits than its factorization.

34392978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1657 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 34392978 is about 5864.5526683627. The cubic root of 34392978 is about 325.2045355504.

The spelling of 34392978 in words is "thirty-four million, three hundred ninety-two thousand, nine hundred seventy-eight".