1396347426 has 48 divisors (see below), whose sum is σ = 3051734400. Its totient is φ = 461420064.

The previous prime is 1396347389. The next prime is 1396347427. The reversal of 1396347426 is 6247436931.

1396347426 is a `hidden beast` number, since 1 + 3 + 9 + 634 + 7 + 4 + 2 + 6 = 666.

It is a super-2 number, since 2×1396347426² = 3899572268193650952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1396347427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1343415 + ... + 1344453.

It is an arithmetic number, because the mean of its divisors is an integer number (63577800).

Almost surely, 2^1396347426 is an apocalyptic number.

1396347426 is an abundant number, since it is smaller than the sum of its proper divisors (1655386974).

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

1396347426 is a wasteful number, since it uses less digits than its factorization.

1396347426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623 (or 1620 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 1396347426 is about 37367.7324171537. The cubic root of 1396347426 is about 1117.7152152200.

The spelling of 1396347426 in words is "one billion, three hundred ninety-six million, three hundred forty-seven thousand, four hundred twenty-six".