1386226949 has 4 divisors (see below), whose sum is σ = 1386480480. Its totient is φ = 1385973420.

The previous prime is 1386226931. The next prime is 1386226973. The reversal of 1386226949 is 9496226831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1386226949 - 2¹² = 1386222853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1386226897 and 1386226906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386226249) 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, 118379 + ... + 129560.

It is an arithmetic number, because the mean of its divisors is an integer number (346620120).

Almost surely, 2^1386226949 is an apocalyptic number.

It is an amenable number.

1386226949 is a deficient number, since it is larger than the sum of its proper divisors (253531).

1386226949 is an equidigital number, since it uses as much as digits as its factorization.

1386226949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253530.

The product of its digits is 1119744, while the sum is 50.

The square root of 1386226949 is about 37232.0688251405. The cubic root of 1386226949 is about 1115.0083314948.

The spelling of 1386226949 in words is "one billion, three hundred eighty-six million, two hundred twenty-six thousand, nine hundred forty-nine".