3257922780 has 216 divisors, whose sum is σ = 12101478480. Its totient is φ = 705438720.

The previous prime is 3257922769. The next prime is 3257922793. The reversal of 3257922780 is 872297523.

3257922780 is a `hidden beast` number, since 3 + 2 + 579 + 2 + 2 + 78 + 0 = 666.

It is a super-2 number, since 2×3257922780² = 21228121680885856800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 157860 + ... + 177300.

Almost surely, 2^3257922780 is an apocalyptic number.

3257922780 is a gapful number since it is divisible by the number (30) 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 3257922780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6050739240).

3257922780 is an abundant number, since it is smaller than the sum of its proper divisors (8843555700).

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

3257922780 is a wasteful number, since it uses less digits than its factorization.

3257922780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19489 (or 19477 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 3257922780 is about 57078.2163351309. The cubic root of 3257922780 is about 1482.4507089656.

The spelling of 3257922780 in words is "three billion, two hundred fifty-seven million, nine hundred twenty-two thousand, seven hundred eighty".