2154322402 has 16 divisors (see below), whose sum is σ = 3243952800. Its totient is φ = 1073013760.

The previous prime is 2154322381. The next prime is 2154322411. The reversal of 2154322402 is 2042234512.

It is a super-2 number, since 2×2154322402² = 9282210023518099208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645474 + ... + 648802.

It is an arithmetic number, because the mean of its divisors is an integer number (202747050).

Almost surely, 2^2154322402 is an apocalyptic number.

2154322402 is a deficient number, since it is larger than the sum of its proper divisors (1089630398).

2154322402 is a wasteful number, since it uses less digits than its factorization.

2154322402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2154322402 is about 46414.6787342108. The cubic root of 2154322402 is about 1291.5272263228.

Adding to 2154322402 its reverse (2042234512), we get a palindrome (4196556914).

The spelling of 2154322402 in words is "two billion, one hundred fifty-four million, three hundred twenty-two thousand, four hundred two".