2142215402 has 8 divisors (see below), whose sum is σ = 3214576800. Its totient is φ = 1070689804.

The previous prime is 2142215393. The next prime is 2142215419. The reversal of 2142215402 is 2045122412.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 202502 + ... + 212817.

It is an arithmetic number, because the mean of its divisors is an integer number (401822100).

Almost surely, 2^2142215402 is an apocalyptic number.

2142215402 is a deficient number, since it is larger than the sum of its proper divisors (1072361398).

2142215402 is a wasteful number, since it uses less digits than its factorization.

2142215402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417900.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2142215402 is about 46284.0728760985. The cubic root of 2142215402 is about 1289.1032772086.

Adding to 2142215402 its reverse (2045122412), we get a palindrome (4187337814).

The spelling of 2142215402 in words is "two billion, one hundred forty-two million, two hundred fifteen thousand, four hundred two".