102280464 has 120 divisors (see below), whose sum is σ = 336353472. Its totient is φ = 28604160.

The previous prime is 102280463. The next prime is 102280487. The reversal of 102280464 is 464082201.

It is a super-2 number, since 2×102280464² = 20922586632110592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102280463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18109 + ... + 23075.

Almost surely, 2^102280464 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 102280464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168176736).

102280464 is an abundant number, since it is smaller than the sum of its proper divisors (234073008).

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

102280464 is a wasteful number, since it uses less digits than its factorization.

102280464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005 (or 4996 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 102280464 is about 10113.3804437488. The cubic root of 102280464 is about 467.6607227609.

The spelling of 102280464 in words is "one hundred two million, two hundred eighty thousand, four hundred sixty-four".