1392700128 has 72 divisors (see below), whose sum is σ = 3757669272. Its totient is φ = 451643904.

The previous prime is 1392700121. The next prime is 1392700157. The reversal of 1392700128 is 8210072931.

It is a super-2 number, since 2×1392700128² = 3879227293062432768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392700121) 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 11 ways as a sum of consecutive naturals, for example, 126126 + ... + 136722.

It is an arithmetic number, because the mean of its divisors is an integer number (52189851).

Almost surely, 2^1392700128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392700128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878834636).

1392700128 is an abundant number, since it is smaller than the sum of its proper divisors (2364969144).

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

1392700128 is a wasteful number, since it uses less digits than its factorization.

1392700128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684 (or 10639 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1392700128 is about 37318.8977329181. The cubic root of 1392700128 is about 1116.7411990152.

It can be divided in two parts, 1392 and 700128, that added together give a triangular number (701520 = T₁₁₈₄).

The spelling of 1392700128 in words is "one billion, three hundred ninety-two million, seven hundred thousand, one hundred twenty-eight".