34978890 has 32 divisors (see below), whose sum is σ = 84105216. Its totient is φ = 9310400.

The previous prime is 34978871. The next prime is 34978897. The reversal of 34978890 is 9887943.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34978897) 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, 29815 + ... + 30965.

It is an arithmetic number, because the mean of its divisors is an integer number (2628288).

Almost surely, 2^34978890 is an apocalyptic number.

34978890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34978890 is an abundant number, since it is smaller than the sum of its proper divisors (49126326).

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

34978890 is a wasteful number, since it uses less digits than its factorization.

34978890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 34978890 is about 5914.2953933668. The cubic root of 34978890 is about 327.0408537834.

The spelling of 34978890 in words is "thirty-four million, nine hundred seventy-eight thousand, eight hundred ninety".