1388300634 has 60 divisors (see below), whose sum is σ = 3618731754. Its totient is φ = 396655056.

The previous prime is 1388300629. The next prime is 1388300681. The reversal of 1388300634 is 4360038831.

It is a happy number.

1388300634 is a `hidden beast` number, since 13 + 8 + 8 + 3 + 0 + 0 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 737285409 + 651015225 = 27153^2 + 25515^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 79509 + ... + 95384.

Almost surely, 2^1388300634 is an apocalyptic number.

1388300634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1388300634 is an abundant number, since it is smaller than the sum of its proper divisors (2230431120).

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

1388300634 is a wasteful number, since it uses less digits than its factorization.

1388300634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174921 (or 174905 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1388300634 is about 37259.9065216219. The cubic root of 1388300634 is about 1115.5640423441.

The spelling of 1388300634 in words is "one billion, three hundred eighty-eight million, three hundred thousand, six hundred thirty-four".