1210764128 has 72 divisors (see below), whose sum is σ = 2782852632. Its totient is φ = 517031424.

The previous prime is 1210764127. The next prime is 1210764131. The reversal of 1210764128 is 8214670121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1210764094 and 1210764103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210764127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489551 + ... + 492017.

It is an arithmetic number, because the mean of its divisors is an integer number (38650731).

Almost surely, 2^1210764128 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 1210764128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391426316).

1210764128 is an abundant number, since it is smaller than the sum of its proper divisors (1572088504).

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

1210764128 is a wasteful number, since it uses less digits than its factorization.

1210764128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1210764128 is about 34796.0360960843. The cubic root of 1210764128 is about 1065.8265026515.

The spelling of 1210764128 in words is "one billion, two hundred ten million, seven hundred sixty-four thousand, one hundred twenty-eight".