4090188442 has 16 divisors (see below), whose sum is σ = 6267808512. Its totient is φ = 2000946640.

The previous prime is 4090188439. The next prime is 4090188469. The reversal of 4090188442 is 2448810904.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4090188395 and 4090188404.

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, 453408 + ... + 462340.

It is an arithmetic number, because the mean of its divisors is an integer number (391738032).

Almost surely, 2^4090188442 is an apocalyptic number.

4090188442 is a deficient number, since it is larger than the sum of its proper divisors (2177620070).

4090188442 is a wasteful number, since it uses less digits than its factorization.

4090188442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 4090188442 is about 63954.5810868932. The cubic root of 4090188442 is about 1599.2429285520.

The spelling of 4090188442 in words is "four billion, ninety million, one hundred eighty-eight thousand, four hundred forty-two".