134202640 has 80 divisors (see below), whose sum is σ = 366601536. Its totient is φ = 45043200.

The previous prime is 134202637. The next prime is 134202647. The reversal of 134202640 is 46202431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (134202647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5575 + ... + 17305.

Almost surely, 2^134202640 is an apocalyptic number.

134202640 is a gapful number since it is divisible by the number (10) 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 134202640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183300768).

134202640 is an abundant number, since it is smaller than the sum of its proper divisors (232398896).

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

134202640 is a wasteful number, since it uses less digits than its factorization.

134202640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11768 (or 11762 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 134202640 is about 11584.5863111291. The cubic root of 134202640 is about 511.9808138969.

The spelling of 134202640 in words is "one hundred thirty-four million, two hundred two thousand, six hundred forty".