340020504 has 80 divisors (see below), whose sum is σ = 1002533400. Its totient is φ = 107371008.

The previous prime is 340020497. The next prime is 340020557. The reversal of 340020504 is 405020043.

It is a happy number.

It is a super-3 number, since 3×340020504³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1497 + ... + 26120.

Almost surely, 2^340020504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340020504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501266700).

340020504 is an abundant number, since it is smaller than the sum of its proper divisors (662512896).

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

340020504 is a wasteful number, since it uses less digits than its factorization.

340020504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27654 (or 27641 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 340020504 is about 18439.6448989670. The cubic root of 340020504 is about 697.9672346368.

Adding to 340020504 its reverse (405020043), we get a palindrome (745040547).

The spelling of 340020504 in words is "three hundred forty million, twenty thousand, five hundred four".