1340193528 has 48 divisors (see below), whose sum is σ = 3635138520. Its totient is φ = 446060736.

The previous prime is 1340193523. The next prime is 1340193551. The reversal of 1340193528 is 8253910431.

1340193528 is a `hidden beast` number, since 1 + 3 + 40 + 1 + 93 + 528 = 666.

It is a super-2 number, since 2×1340193528² = 3592237384986173568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1340193492 and 1340193501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340193523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35550 + ... + 62802.

Almost surely, 2^1340193528 is an apocalyptic number.

1340193528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1340193528 is an abundant number, since it is smaller than the sum of its proper divisors (2294944992).

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

1340193528 is a wasteful number, since it uses less digits than its factorization.

1340193528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27948 (or 27941 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1340193528 is about 36608.6537310511. The cubic root of 1340193528 is about 1102.5268434083.

It can be divided in two parts, 13401 and 93528, that added together give a square (106929 = 327²).

The spelling of 1340193528 in words is "one billion, three hundred forty million, one hundred ninety-three thousand, five hundred twenty-eight".