340213125 has 120 divisors (see below), whose sum is σ = 691028800. Its totient is φ = 148764000.

The previous prime is 340213073. The next prime is 340213151. The reversal of 340213125 is 521312043.

It is not a de Polignac number, because 340213125 - 2⁷ = 340212997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 14791864 + ... + 14791886.

Almost surely, 2^340213125 is an apocalyptic number.

340213125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340213125 is an abundant number, since it is smaller than the sum of its proper divisors (350815675).

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

340213125 is an frugal number, since it uses more digits than its factorization.

340213125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 340213125 is about 18444.8671721973. The cubic root of 340213125 is about 698.0990088150.

Multiplying 340213125 by its sum of digits (21), we get a square (7144475625 = 84525²).

340213125 divided by its sum of digits (21) gives a square (16200625 = 4025²).

Adding to 340213125 its reverse (521312043), we get a palindrome (861525168).

The spelling of 340213125 in words is "three hundred forty million, two hundred thirteen thousand, one hundred twenty-five".