388213044 has 48 divisors (see below), whose sum is σ = 965357568. Its totient is φ = 121140448.

The previous prime is 388213027. The next prime is 388213061. The reversal of 388213044 is 440312883.

It is an interprime number because it is at equal distance from previous prime (388213027) and next prime (388213061).

It is a junction number, because it is equal to n+sod(n) for n = 388212996 and 388213014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1992 + ... + 27935.

It is an arithmetic number, because the mean of its divisors is an integer number (20111616).

Almost surely, 2^388213044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388213044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482678784).

388213044 is an abundant number, since it is smaller than the sum of its proper divisors (577144524).

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

388213044 is a wasteful number, since it uses less digits than its factorization.

388213044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30004 (or 30002 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 388213044 is about 19703.1226966692. The cubic root of 388213044 is about 729.4967720870.

The spelling of 388213044 in words is "three hundred eighty-eight million, two hundred thirteen thousand, forty-four".