1306690190 has 32 divisors (see below), whose sum is σ = 2555413056. Its totient is φ = 478195200.

The previous prime is 1306690181. The next prime is 1306690199. The reversal of 1306690190 is 910966031.

It is an interprime number because it is at equal distance from previous prime (1306690181) and next prime (1306690199).

It is a super-2 number, since 2×1306690190² = 3414878505284472200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1306690190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306690199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29786 + ... + 59165.

It is an arithmetic number, because the mean of its divisors is an integer number (79856658).

Almost surely, 2^1306690190 is an apocalyptic number.

1306690190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306690190 is a deficient number, since it is larger than the sum of its proper divisors (1248722866).

1306690190 is a wasteful number, since it uses less digits than its factorization.

1306690190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89084.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 1306690190 is about 36148.1699398462. The cubic root of 1306690190 is about 1093.2618922890.

The spelling of 1306690190 in words is "one billion, three hundred six million, six hundred ninety thousand, one hundred ninety".