34138470 has 32 divisors (see below), whose sum is σ = 82218240. Its totient is φ = 9071840.

The previous prime is 34138453. The next prime is 34138477. The reversal of 34138470 is 7483143.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34138477) 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, 7501 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (2569320).

Almost surely, 2^34138470 is an apocalyptic number.

34138470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34138470 is an abundant number, since it is smaller than the sum of its proper divisors (48079770).

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

34138470 is a wasteful number, since it uses less digits than its factorization.

34138470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 34138470 is about 5842.8135345910. The cubic root of 34138470 is about 324.4003776166.

The spelling of 34138470 in words is "thirty-four million, one hundred thirty-eight thousand, four hundred seventy".