1349977730 has 16 divisors (see below), whose sum is σ = 2447444160. Its totient is φ = 536105712.

The previous prime is 1349977691. The next prime is 1349977747. The reversal of 1349977730 is 377799431.

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, 484214 + ... + 486993.

It is an arithmetic number, because the mean of its divisors is an integer number (152965260).

Almost surely, 2^1349977730 is an apocalyptic number.

1349977730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1349977730 is a deficient number, since it is larger than the sum of its proper divisors (1097466430).

1349977730 is a wasteful number, since it uses less digits than its factorization.

1349977730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971353.

The product of its (nonzero) digits is 1000188, while the sum is 50.

The square root of 1349977730 is about 36742.0430841835. The cubic root of 1349977730 is about 1105.2033722712.

The spelling of 1349977730 in words is "one billion, three hundred forty-nine million, nine hundred seventy-seven thousand, seven hundred thirty".