34978590 has 24 divisors (see below), whose sum is σ = 90944568. Its totient is φ = 9327600.

The previous prime is 34978589. The next prime is 34978591. The reversal of 34978590 is 9587943.

It is an interprime number because it is at equal distance from previous prime (34978589) and next prime (34978591).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34978591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194236 + ... + 194415.

It is an arithmetic number, because the mean of its divisors is an integer number (3789357).

Almost surely, 2^34978590 is an apocalyptic number.

34978590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34978590 is an abundant number, since it is smaller than the sum of its proper divisors (55965978).

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

34978590 is a wasteful number, since it uses less digits than its factorization.

34978590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388664 (or 388661 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 34978590 is about 5914.2700310351. The cubic root of 34978590 is about 327.0399188144.

The spelling of 34978590 in words is "thirty-four million, nine hundred seventy-eight thousand, five hundred ninety".