385202500 has 30 divisors (see below), whose sum is σ = 842366294. Its totient is φ = 154080000.

The previous prime is 385202491. The next prime is 385202501. The reversal of 385202500 is 5202583.

It can be written as a sum of positive squares in 5 ways, for example, as 117029124 + 268173376 = 10818^2 + 16376^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (385202501) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 74541 + ... + 79540.

Almost surely, 2^385202500 is an apocalyptic number.

It is an amenable number.

385202500 is an abundant number, since it is smaller than the sum of its proper divisors (457163794).

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

385202500 is a wasteful number, since it uses less digits than its factorization.

385202500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154105 (or 154088 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 385202500 is about 19626.5763698104. The cubic root of 385202500 is about 727.6061574794.

The spelling of 385202500 in words is "three hundred eighty-five million, two hundred two thousand, five hundred".