34390638 has 24 divisors (see below), whose sum is σ = 74653488. Its totient is φ = 11441952.

The previous prime is 34390633. The next prime is 34390639. The reversal of 34390638 is 83609343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390633) 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 11 ways as a sum of consecutive naturals, for example, 10170 + ... + 13122.

It is an arithmetic number, because the mean of its divisors is an integer number (3110562).

Almost surely, 2^34390638 is an apocalyptic number.

34390638 is an abundant number, since it is smaller than the sum of its proper divisors (40262850).

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

34390638 is a wasteful number, since it uses less digits than its factorization.

34390638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608 (or 3605 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 34390638 is about 5864.3531612617. The cubic root of 34390638 is about 325.1971600538.

The spelling of 34390638 in words is "thirty-four million, three hundred ninety thousand, six hundred thirty-eight".