102261392 has 40 divisors (see below), whose sum is σ = 212486400. Its totient is φ = 47503872.

The previous prime is 102261391. The next prime is 102261407. The reversal of 102261392 is 293162201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102261391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19109 + ... + 23867.

It is an arithmetic number, because the mean of its divisors is an integer number (5312160).

Almost surely, 2^102261392 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 102261392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106243200).

102261392 is an abundant number, since it is smaller than the sum of its proper divisors (110225008).

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

102261392 is a wasteful number, since it uses less digits than its factorization.

102261392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863 (or 4857 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 102261392 is about 10112.4374905361. The cubic root of 102261392 is about 467.6316530852.

The spelling of 102261392 in words is "one hundred two million, two hundred sixty-one thousand, three hundred ninety-two".