1349423770 has 8 divisors (see below), whose sum is σ = 2428962804. Its totient is φ = 539769504.

The previous prime is 1349423749. The next prime is 1349423771. The reversal of 1349423770 is 773249431.

1349423770 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1240659729 + 108764041 = 35223^2 + 10429^2 .

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

It is a super-2 number, since 2×1349423770² = 3641889022082025800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1349423771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67471179 + ... + 67471198.

Almost surely, 2^1349423770 is an apocalyptic number.

1349423770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1349423770 is a deficient number, since it is larger than the sum of its proper divisors (1079539034).

1349423770 is a wasteful number, since it uses less digits than its factorization.

1349423770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134942384.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 1349423770 is about 36734.5038077282. The cubic root of 1349423770 is about 1105.0521791048.

The spelling of 1349423770 in words is "one billion, three hundred forty-nine million, four hundred twenty-three thousand, seven hundred seventy".