2136378 has 32 divisors (see below), whose sum is σ = 4530816. Its totient is φ = 670208.

The previous prime is 2136371. The next prime is 2136383. The reversal of 2136378 is 8736312.

It is a super-2 number, since 2×2136378² = 9128221917768, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3⁷ + 6² + 3⁹ + 7⁵ + 8³ .

It is not an unprimeable number, because it can be changed into a prime (2136371) 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, 15526 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (141588).

2^2136378 is an apocalyptic number.

2136378 is an abundant number, since it is smaller than the sum of its proper divisors (2394438).

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

2136378 is a wasteful number, since it uses less digits than its factorization.

2136378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its digits is 6048, while the sum is 30.

The square root of 2136378 is about 1461.6353854501. The cubic root of 2136378 is about 128.7931303642.

The spelling of 2136378 in words is "two million, one hundred thirty-six thousand, three hundred seventy-eight".