1366097890 has 32 divisors (see below), whose sum is σ = 2490497280. Its totient is φ = 539470464.

The previous prime is 1366097861. The next prime is 1366097899. The reversal of 1366097890 is 987906631.

It is not an unprimeable number, because it can be changed into a prime (1366097899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332871 + ... + 336949.

It is an arithmetic number, because the mean of its divisors is an integer number (77828040).

Almost surely, 2^1366097890 is an apocalyptic number.

1366097890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1366097890 is a deficient number, since it is larger than the sum of its proper divisors (1124399390).

1366097890 is a wasteful number, since it uses less digits than its factorization.

1366097890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1366097890 is about 36960.7614910732. The cubic root of 1366097890 is about 1109.5850760957.

The spelling of 1366097890 in words is "one billion, three hundred sixty-six million, ninety-seven thousand, eight hundred ninety".