1366004250 has 160 divisors (see below), whose sum is σ = 4114590480. Its totient is φ = 336182400.

The previous prime is 1366004249. The next prime is 1366004267. The reversal of 1366004250 is 524006631.

1366004250 is a `hidden beast` number, since 1 + 3 + 6 + 600 + 4 + 2 + 50 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 26224641 + 1339779609 = 5121^2 + 36603^2 .

It is a super-2 number, since 2×1366004250² = 3731935222036125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 260656 + ... + 265844.

Almost surely, 2^1366004250 is an apocalyptic number.

1366004250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366004250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057295240).

1366004250 is an abundant number, since it is smaller than the sum of its proper divisors (2748586230).

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

1366004250 is a wasteful number, since it uses less digits than its factorization.

1366004250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5212 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1366004250 is about 36959.4947205721. The cubic root of 1366004250 is about 1109.5597231247.

The spelling of 1366004250 in words is "one billion, three hundred sixty-six million, four thousand, two hundred fifty".