1340221030 has 16 divisors (see below), whose sum is σ = 2477598480. Its totient is φ = 521599392.

The previous prime is 1340221013. The next prime is 1340221081. The reversal of 1340221030 is 301220431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1340220995 and 1340221013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810740 + ... + 1811479.

It is an arithmetic number, because the mean of its divisors is an integer number (154849905).

Almost surely, 2^1340221030 is an apocalyptic number.

1340221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340221030 is a deficient number, since it is larger than the sum of its proper divisors (1137377450).

1340221030 is a wasteful number, since it uses less digits than its factorization.

1340221030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622263.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1340221030 is about 36609.0293506943. The cubic root of 1340221030 is about 1102.5343849773.

Adding to 1340221030 its reverse (301220431), we get a palindrome (1641441461).

The spelling of 1340221030 in words is "one billion, three hundred forty million, two hundred twenty-one thousand, thirty".