1388374416 has 240 divisors, whose sum is σ = 4601705472. Its totient is φ = 385228800.

The previous prime is 1388374409. The next prime is 1388374417. The reversal of 1388374416 is 6144738831.

It is not an unprimeable number, because it can be changed into a prime (1388374417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3932896 + ... + 3933248.

Almost surely, 2^1388374416 is an apocalyptic number.

1388374416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1388374416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300852736).

1388374416 is an abundant number, since it is smaller than the sum of its proper divisors (3213331056).

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

1388374416 is a wasteful number, since it uses less digits than its factorization.

1388374416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 573 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 1388374416 is about 37260.8966075697. The cubic root of 1388374416 is about 1115.5838044153.

The spelling of 1388374416 in words is "one billion, three hundred eighty-eight million, three hundred seventy-four thousand, four hundred sixteen".