102052240 has 40 divisors (see below), whose sum is σ = 237772728. Its totient is φ = 40734720.

The previous prime is 102052199. The next prime is 102052243. The reversal of 102052240 is 42250201.

It can be written as a sum of positive squares in 4 ways, for example, as 1089936 + 100962304 = 1044^2 + 10048^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (102052243) 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, 48000 + ... + 50080.

Almost surely, 2^102052240 is an apocalyptic number.

102052240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102052240 is an abundant number, since it is smaller than the sum of its proper divisors (135720488).

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

102052240 is a wasteful number, since it uses less digits than its factorization.

102052240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 102052240 is about 10102.0908726857. The cubic root of 102052240 is about 467.3126247294.

The spelling of 102052240 in words is "one hundred two million, fifty-two thousand, two hundred forty".