1396928172 has 96 divisors (see below), whose sum is σ = 3405265920. Its totient is φ = 445427200.

The previous prime is 1396928171. The next prime is 1396928249. The reversal of 1396928172 is 2718296931.

1396928172 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1396928172³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1396928171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7803979 + ... + 7804157.

It is an arithmetic number, because the mean of its divisors is an integer number (35471520).

Almost surely, 2^1396928172 is an apocalyptic number.

1396928172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1396928172 is an abundant number, since it is smaller than the sum of its proper divisors (2008337748).

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

1396928172 is a wasteful number, since it uses less digits than its factorization.

1396928172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 1396928172 is about 37375.5022976281. The cubic root of 1396928172 is about 1117.8701476912.

The spelling of 1396928172 in words is "one billion, three hundred ninety-six million, nine hundred twenty-eight thousand, one hundred seventy-two".