1678253052 has 192 divisors, whose sum is σ = 4967424000. Its totient is φ = 429960960.

The previous prime is 1678253023. The next prime is 1678253077. The reversal of 1678253052 is 2503528761.

It is a self number, because there is not a number n which added to its sum of digits gives 1678253052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4808574 + ... + 4808922.

It is an arithmetic number, because the mean of its divisors is an integer number (25872000).

Almost surely, 2^1678253052 is an apocalyptic number.

1678253052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1678253052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483712000).

1678253052 is an abundant number, since it is smaller than the sum of its proper divisors (3289170948).

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

1678253052 is a wasteful number, since it uses less digits than its factorization.

1678253052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1678253052 is about 40966.4869374956. The cubic root of 1678253052 is about 1188.3721951630.

The spelling of 1678253052 in words is "one billion, six hundred seventy-eight million, two hundred fifty-three thousand, fifty-two".