1387464290 has 16 divisors (see below), whose sum is σ = 2498941368. Its totient is φ = 554651136.

The previous prime is 1387464283. The next prime is 1387464293. The reversal of 1387464290 is 924647831.

It can be written as a sum of positive squares in 4 ways, for example, as 873852721 + 513611569 = 29561^2 + 22663^2 .

It is not an unprimeable number, because it can be changed into a prime (1387464293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24047 + ... + 57906.

Almost surely, 2^1387464290 is an apocalyptic number.

1387464290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387464290 is a deficient number, since it is larger than the sum of its proper divisors (1111477078).

1387464290 is a wasteful number, since it uses less digits than its factorization.

1387464290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83653.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1387464290 is about 37248.6817216395. The cubic root of 1387464290 is about 1115.3399835954.

The spelling of 1387464290 in words is "one billion, three hundred eighty-seven million, four hundred sixty-four thousand, two hundred ninety".