1396626407 has 12 divisors (see below), whose sum is σ = 1615934040. Its totient is φ = 1202834160.

The previous prime is 1396626389. The next prime is 1396626409. The reversal of 1396626407 is 7046266931.

It is not a de Polignac number, because 1396626407 - 2¹⁰ = 1396625383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396626409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301448 + ... + 306045.

It is an arithmetic number, because the mean of its divisors is an integer number (134661170).

Almost surely, 2^1396626407 is an apocalyptic number.

1396626407 is a deficient number, since it is larger than the sum of its proper divisors (219307633).

1396626407 is a wasteful number, since it uses less digits than its factorization.

1396626407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607534 (or 607523 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1396626407 is about 37371.4651438768. The cubic root of 1396626407 is about 1117.7896476375.

The spelling of 1396626407 in words is "one billion, three hundred ninety-six million, six hundred twenty-six thousand, four hundred seven".