34023420 has 36 divisors (see below), whose sum is σ = 103204920. Its totient is φ = 9072864.

The previous prime is 34023397. The next prime is 34023439. The reversal of 34023420 is 2432043.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 34023393 and 34023402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94330 + ... + 94689.

Almost surely, 2^34023420 is an apocalyptic number.

34023420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34023420 is an abundant number, since it is smaller than the sum of its proper divisors (69181500).

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

34023420 is a wasteful number, since it uses less digits than its factorization.

34023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189034 (or 189029 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 34023420 is about 5832.9597975642. The cubic root of 34023420 is about 324.0355470830.

Adding to 34023420 its reverse (2432043), we get a palindrome (36455463).

It can be divided in two parts, 34023 and 420, that added together give a palindrome (34443).

The spelling of 34023420 in words is "thirty-four million, twenty-three thousand, four hundred twenty".