134640738 has 16 divisors (see below), whose sum is σ = 299201760. Its totient is φ = 44880228.

The previous prime is 134640703. The next prime is 134640739. The reversal of 134640738 is 837046431.

134640738 is a `hidden beast` number, since 1 + 3 + 4 + 640 + 7 + 3 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (134640739) 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, 1246620 + ... + 1246727.

It is an arithmetic number, because the mean of its divisors is an integer number (18700110).

Almost surely, 2^134640738 is an apocalyptic number.

134640738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134640738 is an abundant number, since it is smaller than the sum of its proper divisors (164561022).

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

134640738 is a wasteful number, since it uses less digits than its factorization.

134640738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493358 (or 2493352 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 134640738 is about 11603.4795643376. The cubic root of 134640738 is about 512.5373209387.

The spelling of 134640738 in words is "one hundred thirty-four million, six hundred forty thousand, seven hundred thirty-eight".