136670440 has 16 divisors (see below), whose sum is σ = 307508580. Its totient is φ = 54668160.

The previous prime is 136670437. The next prime is 136670483. The reversal of 136670440 is 44076631.

It can be written as a sum of positive squares in 2 ways, for example, as 133494916 + 3175524 = 11554^2 + 1782^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708341 + ... + 1708420.

Almost surely, 2^136670440 is an apocalyptic number.

136670440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136670440 is an abundant number, since it is smaller than the sum of its proper divisors (170838140).

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

136670440 is a wasteful number, since it uses less digits than its factorization.

136670440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416772 (or 3416768 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 136670440 is about 11690.6133286496. The cubic root of 136670440 is about 515.0999774480.

The spelling of 136670440 in words is "one hundred thirty-six million, six hundred seventy thousand, four hundred forty".