1397022006 has 32 divisors (see below), whose sum is σ = 3035980800. Its totient is φ = 426932640.

The previous prime is 1397021993. The next prime is 1397022023. The reversal of 1397022006 is 6002207931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194121 + ... + 201188.

It is an arithmetic number, because the mean of its divisors is an integer number (94874400).

Almost surely, 2^1397022006 is an apocalyptic number.

1397022006 is an abundant number, since it is smaller than the sum of its proper divisors (1638958794).

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

1397022006 is a wasteful number, since it uses less digits than its factorization.

1397022006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395364.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1397022006 is about 37376.7575640263. The cubic root of 1397022006 is about 1117.8951768662.

Adding to 1397022006 its reverse (6002207931), we get a palindrome (7399229937).

The spelling of 1397022006 in words is "one billion, three hundred ninety-seven million, twenty-two thousand, six".