2111402434 has 4 divisors (see below), whose sum is σ = 3167103654. Its totient is φ = 1055701216.

The previous prime is 2111402399. The next prime is 2111402441. The reversal of 2111402434 is 4342041112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2111126809 + 275625 = 45947^2 + 525^2 .

It is a super-2 number, since 2×2111402434² = 8916040476602248712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527850607 + ... + 527850610.

Almost surely, 2^2111402434 is an apocalyptic number.

2111402434 is a deficient number, since it is larger than the sum of its proper divisors (1055701220).

2111402434 is a wasteful number, since it uses less digits than its factorization.

2111402434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055701219.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2111402434 is about 45949.9992818281. Note that the first 3 decimals coincide. The cubic root of 2111402434 is about 1282.8927159467.

Adding to 2111402434 its reverse (4342041112), we get a palindrome (6453443546).

The spelling of 2111402434 in words is "two billion, one hundred eleven million, four hundred two thousand, four hundred thirty-four".