2079218154 has 24 divisors (see below), whose sum is σ = 4502924352. Its totient is φ = 639759120.

The previous prime is 2079218153. The next prime is 2079218161. The reversal of 2079218154 is 4518129702.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2079218153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1024242 + ... + 1026269.

It is an arithmetic number, because the mean of its divisors is an integer number (187621848).

Almost surely, 2^2079218154 is an apocalyptic number.

2079218154 is an abundant number, since it is smaller than the sum of its proper divisors (2423706198).

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

2079218154 is a wasteful number, since it uses less digits than its factorization.

2079218154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050542 (or 2050529 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2079218154 is about 45598.4446445271. Note that the first 3 decimals coincide. The cubic root of 2079218154 is about 1276.3408994890.

The spelling of 2079218154 in words is "two billion, seventy-nine million, two hundred eighteen thousand, one hundred fifty-four".