134494640 has 40 divisors (see below), whose sum is σ = 357372960. Its totient is φ = 46112256.

The previous prime is 134494631. The next prime is 134494649. The reversal of 134494640 is 46494431.

It is an interprime number because it is at equal distance from previous prime (134494631) and next prime (134494649).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 134494640.

It is not an unprimeable number, because it can be changed into a prime (134494649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119525 + ... + 120644.

It is an arithmetic number, because the mean of its divisors is an integer number (8934324).

Almost surely, 2^134494640 is an apocalyptic number.

134494640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134494640 is an abundant number, since it is smaller than the sum of its proper divisors (222878320).

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

134494640 is a wasteful number, since it uses less digits than its factorization.

134494640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240189 (or 240183 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 134494640 is about 11597.1824164320. The cubic root of 134494640 is about 512.3518699398.

The spelling of 134494640 in words is "one hundred thirty-four million, four hundred ninety-four thousand, six hundred forty".