1054671990 has 16 divisors (see below), whose sum is σ = 2531212848. Its totient is φ = 281245856.

The previous prime is 1054671949. The next prime is 1054672001. The reversal of 1054671990 is 991764501.

1054671990 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1054671990² = 2224666012981120200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17577837 + ... + 17577896.

It is an arithmetic number, because the mean of its divisors is an integer number (158200803).

Almost surely, 2^1054671990 is an apocalyptic number.

1054671990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1054671990 is an abundant number, since it is smaller than the sum of its proper divisors (1476540858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1054671990 is a wasteful number, since it uses less digits than its factorization.

1054671990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35155743.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 1054671990 is about 32475.7138489672. The cubic root of 1054671990 is about 1017.9016164958.

The spelling of 1054671990 in words is "one billion, fifty-four million, six hundred seventy-one thousand, nine hundred ninety".