1990027126 has 8 divisors (see below), whose sum is σ = 2991171600. Its totient is φ = 992969928.

The previous prime is 1990027069. The next prime is 1990027147. The reversal of 1990027126 is 6217200991.

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

It is a congruent number.

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, 1020601 + ... + 1022548.

It is an arithmetic number, because the mean of its divisors is an integer number (373896450).

Almost surely, 2^1990027126 is an apocalyptic number.

1990027126 is a deficient number, since it is larger than the sum of its proper divisors (1001144474).

1990027126 is a wasteful number, since it uses less digits than its factorization.

1990027126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043638.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1990027126 is about 44609.7200843045. The cubic root of 1990027126 is about 1257.8233870871.

The spelling of 1990027126 in words is "one billion, nine hundred ninety million, twenty-seven thousand, one hundred twenty-six".