388364340 has 96 divisors (see below), whose sum is σ = 1338382080. Its totient is φ = 81939456.

The previous prime is 388364323. The next prime is 388364357. The reversal of 388364340 is 43463883.

It is an interprime number because it is at equal distance from previous prime (388364323) and next prime (388364357).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30105 + ... + 41024.

It is an arithmetic number, because the mean of its divisors is an integer number (13941480).

Almost surely, 2^388364340 is an apocalyptic number.

388364340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388364340 is an abundant number, since it is smaller than the sum of its proper divisors (950017740).

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

388364340 is a wasteful number, since it uses less digits than its factorization.

388364340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71161 (or 71159 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 388364340 is about 19706.9617140745. The cubic root of 388364340 is about 729.5915272826.

The spelling of 388364340 in words is "three hundred eighty-eight million, three hundred sixty-four thousand, three hundred forty".