1388701072 has 20 divisors (see below), whose sum is σ = 2935209456. Its totient is φ = 631227680.

The previous prime is 1388701063. The next prime is 1388701081. The reversal of 1388701072 is 2701078831.

It is an interprime number because it is at equal distance from previous prime (1388701063) and next prime (1388701081).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3944998 + ... + 3945349.

Almost surely, 2^1388701072 is an apocalyptic number.

It is an amenable number.

1388701072 is an abundant number, since it is smaller than the sum of its proper divisors (1546508384).

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

1388701072 is a wasteful number, since it uses less digits than its factorization.

1388701072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890366 (or 7890360 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 1388701072 is about 37265.2797118175. The cubic root of 1388701072 is about 1115.6712888775.

The spelling of 1388701072 in words is "one billion, three hundred eighty-eight million, seven hundred one thousand, seventy-two".