1370706649 has 8 divisors (see below), whose sum is σ = 1479760520. Its totient is φ = 1262169216.

The previous prime is 1370706647. The next prime is 1370706671. The reversal of 1370706649 is 9466070731.

It can be written as a sum of positive squares in 4 ways, for example, as 37945600 + 1332761049 = 6160^2 + 36507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1370706649 - 2¹ = 1370706647 is a prime.

It is a super-2 number, since 2×1370706649² = 3757673435225618402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1370706647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123582 + ... + 134215.

It is an arithmetic number, because the mean of its divisors is an integer number (184970065).

Almost surely, 2^1370706649 is an apocalyptic number.

It is an amenable number.

1370706649 is a deficient number, since it is larger than the sum of its proper divisors (109053871).

1370706649 is a wasteful number, since it uses less digits than its factorization.

1370706649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258219.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 1370706649 is about 37023.0556410462. The cubic root of 1370706649 is about 1110.8314655952.

The spelling of 1370706649 in words is "one billion, three hundred seventy million, seven hundred six thousand, six hundred forty-nine".