1387650250 has 64 divisors (see below), whose sum is σ = 2991935232. Its totient is φ = 472056000.

The previous prime is 1387650227. The next prime is 1387650259. The reversal of 1387650250 is 520567831.

It is not an unprimeable number, because it can be changed into a prime (1387650259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226224 + ... + 232276.

It is an arithmetic number, because the mean of its divisors is an integer number (46748988).

Almost surely, 2^1387650250 is an apocalyptic number.

1387650250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387650250 is an abundant number, since it is smaller than the sum of its proper divisors (1604284982).

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

1387650250 is a wasteful number, since it uses less digits than its factorization.

1387650250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208 (or 6198 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1387650250 is about 37251.1778337276. The cubic root of 1387650250 is about 1115.3898105493.

The spelling of 1387650250 in words is "one billion, three hundred eighty-seven million, six hundred fifty thousand, two hundred fifty".