1340719490 has 32 divisors (see below), whose sum is σ = 2647270080. Its totient is φ = 484833600.

The previous prime is 1340719453. The next prime is 1340719517. The reversal of 1340719490 is 949170431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13760 + ... + 53579.

It is an arithmetic number, because the mean of its divisors is an integer number (82727190).

Almost surely, 2^1340719490 is an apocalyptic number.

1340719490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340719490 is a deficient number, since it is larger than the sum of its proper divisors (1306550590).

1340719490 is a wasteful number, since it uses less digits than its factorization.

1340719490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67538.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1340719490 is about 36615.8366011211. The cubic root of 1340719490 is about 1102.6710542676.

The spelling of 1340719490 in words is "one billion, three hundred forty million, seven hundred nineteen thousand, four hundred ninety".