1387628106 has 8 divisors (see below), whose sum is σ = 2775256224. Its totient is φ = 462542700.

The previous prime is 1387628087. The next prime is 1387628147. The reversal of 1387628106 is 6018267831.

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

1387628106 is an admirable number.

It is a super-2 number, since 2×1387628106² = 3851023521122294472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115635670 + ... + 115635681.

It is an arithmetic number, because the mean of its divisors is an integer number (346907028).

Almost surely, 2^1387628106 is an apocalyptic number.

1387628106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387628106 is a wasteful number, since it uses less digits than its factorization.

1387628106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231271356.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1387628106 is about 37250.8806070407. The cubic root of 1387628106 is about 1115.3838774204.

The spelling of 1387628106 in words is "one billion, three hundred eighty-seven million, six hundred twenty-eight thousand, one hundred six".