1388901514 has 32 divisors (see below), whose sum is σ = 2797232256. Its totient is φ = 499504320.

The previous prime is 1388901511. The next prime is 1388901541. The reversal of 1388901514 is 4151098831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1388901511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344877 + ... + 348880.

It is an arithmetic number, because the mean of its divisors is an integer number (87413508).

Almost surely, 2^1388901514 is an apocalyptic number.

1388901514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1388901514 is an abundant number, since it is smaller than the sum of its proper divisors (1408330742).

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

1388901514 is a wasteful number, since it uses less digits than its factorization.

1388901514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693790.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 1388901514 is about 37267.9690082516. The cubic root of 1388901514 is about 1115.7249641262.

The spelling of 1388901514 in words is "one billion, three hundred eighty-eight million, nine hundred one thousand, five hundred fourteen".