388073742 has 32 divisors (see below), whose sum is σ = 888893952. Its totient is φ = 110644704.

The previous prime is 388073713. The next prime is 388073747. The reversal of 388073742 is 247370883.

It is a super-3 number, since 3×388073742³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 388073694 and 388073703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388073747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10968 + ... + 29940.

It is an arithmetic number, because the mean of its divisors is an integer number (27777936).

Almost surely, 2^388073742 is an apocalyptic number.

388073742 is an abundant number, since it is smaller than the sum of its proper divisors (500820210).

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

388073742 is a wasteful number, since it uses less digits than its factorization.

388073742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19472.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 388073742 is about 19699.5873560844. The cubic root of 388073742 is about 729.4095068443.

The spelling of 388073742 in words is "three hundred eighty-eight million, seventy-three thousand, seven hundred forty-two".