1396733920 has 48 divisors (see below), whose sum is σ = 3302933760. Its totient is φ = 558160384.

The previous prime is 1396733917. The next prime is 1396733929. The reversal of 1396733920 is 293376931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396733929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193089 + ... + 200191.

It is an arithmetic number, because the mean of its divisors is an integer number (68811120).

Almost surely, 2^1396733920 is an apocalyptic number.

1396733920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396733920 is an abundant number, since it is smaller than the sum of its proper divisors (1906199840).

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

1396733920 is a wasteful number, since it uses less digits than its factorization.

1396733920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347 (or 8339 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 1396733920 is about 37372.9035532430. The cubic root of 1396733920 is about 1117.8183295705.

The spelling of 1396733920 in words is "one billion, three hundred ninety-six million, seven hundred thirty-three thousand, nine hundred twenty".