1340166450 has 96 divisors (see below), whose sum is σ = 3841361280. Its totient is φ = 302860800.

The previous prime is 1340166437. The next prime is 1340166479. The reversal of 1340166450 is 546610431.

It is a super-2 number, since 2×1340166450² = 3592092227411205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86280 + ... + 100620.

It is an arithmetic number, because the mean of its divisors is an integer number (40014180).

Almost surely, 2^1340166450 is an apocalyptic number.

1340166450 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 1340166450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1920680640).

1340166450 is an abundant number, since it is smaller than the sum of its proper divisors (2501194830).

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

1340166450 is a wasteful number, since it uses less digits than its factorization.

1340166450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452 (or 14447 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1340166450 is about 36608.2838985932. The cubic root of 1340166450 is about 1102.5194180073.

Adding to 1340166450 its reverse (546610431), we get a palindrome (1886776881).

The spelling of 1340166450 in words is "one billion, three hundred forty million, one hundred sixty-six thousand, four hundred fifty".