1387482650 has 24 divisors (see below), whose sum is σ = 2594992764. Its totient is φ = 551923200.

The previous prime is 1387482587. The next prime is 1387482653. The reversal of 1387482650 is 562847831.

It can be written as a sum of positive squares in 6 ways, for example, as 143641 + 1387339009 = 379^2 + 37247^2 .

It is not an unprimeable number, because it can be changed into a prime (1387482653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67607 + ... + 85706.

Almost surely, 2^1387482650 is an apocalyptic number.

1387482650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387482650 is a deficient number, since it is larger than the sum of its proper divisors (1207510114).

1387482650 is a wasteful number, since it uses less digits than its factorization.

1387482650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153506 (or 153501 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 1387482650 is about 37248.9281724991. The cubic root of 1387482650 is about 1115.3449032539.

The spelling of 1387482650 in words is "one billion, three hundred eighty-seven million, four hundred eighty-two thousand, six hundred fifty".