102378052 has 18 divisors (see below), whose sum is σ = 208412862. Its totient is φ = 43876224.

The previous prime is 102378043. The next prime is 102378071. The reversal of 102378052 is 250873201.

It can be written as a sum of positive squares in only one way, i.e., 68459076 + 33918976 = 8274^2 + 5824^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 102378052.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260973 + ... + 261364.

Almost surely, 2^102378052 is an apocalyptic number.

It is an amenable number.

102378052 is an abundant number, since it is smaller than the sum of its proper divisors (106034810).

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

102378052 is a wasteful number, since it uses less digits than its factorization.

102378052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522355 (or 522346 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 102378052 is about 10118.2039908276. The cubic root of 102378052 is about 467.8094105479.

The spelling of 102378052 in words is "one hundred two million, three hundred seventy-eight thousand, fifty-two".