34702020 has 120 divisors (see below), whose sum is σ = 112535808. Its totient is φ = 8942400.

The previous prime is 34701991. The next prime is 34702021. The reversal of 34702020 is 2020743.

It is a happy number.

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 = 34701984 and 34702002.

It is not an unprimeable number, because it can be changed into a prime (34702021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49875 + ... + 50565.

Almost surely, 2^34702020 is an apocalyptic number.

34702020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34702020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56267904).

34702020 is an abundant number, since it is smaller than the sum of its proper divisors (77833788).

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

34702020 is a wasteful number, since it uses less digits than its factorization.

34702020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 34702020 is about 5890.8420450730. The cubic root of 34702020 is about 326.1756866017.

Adding to 34702020 its reverse (2020743), we get a palindrome (36722763).

The spelling of 34702020 in words is "thirty-four million, seven hundred two thousand, twenty".