4088891402 has 4 divisors (see below), whose sum is σ = 6133337106. Its totient is φ = 2044445700.

The previous prime is 4088891399. The next prime is 4088891441. The reversal of 4088891402 is 2041988804.

It is a happy number.

4088891402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 3361564441 + 727326961 = 57979^2 + 26969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022222849 + ... + 1022222852.

Almost surely, 2^4088891402 is an apocalyptic number.

4088891402 is a deficient number, since it is larger than the sum of its proper divisors (2044445704).

4088891402 is a wasteful number, since it uses less digits than its factorization.

4088891402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044445703.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 4088891402 is about 63944.4399615791. The cubic root of 4088891402 is about 1599.0738653271.

The spelling of 4088891402 in words is "four billion, eighty-eight million, eight hundred ninety-one thousand, four hundred two".