1396703730 has 32 divisors (see below), whose sum is σ = 3381761664. Its totient is φ = 369157376.

The previous prime is 1396703677. The next prime is 1396703761. The reversal of 1396703730 is 373076931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202614 + ... + 209393.

It is an arithmetic number, because the mean of its divisors is an integer number (105680052).

Almost surely, 2^1396703730 is an apocalyptic number.

1396703730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1396703730 is an abundant number, since it is smaller than the sum of its proper divisors (1985057934).

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

1396703730 is a wasteful number, since it uses less digits than its factorization.

1396703730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412130.

The product of its (nonzero) digits is 71442, while the sum is 39.

The square root of 1396703730 is about 37372.4996488059. The cubic root of 1396703730 is about 1117.8102757391.

The spelling of 1396703730 in words is "one billion, three hundred ninety-six million, seven hundred three thousand, seven hundred thirty".