388254540 has 48 divisors (see below), whose sum is σ = 1122186240. Its totient is φ = 100194240.

The previous prime is 388254499. The next prime is 388254541. The reversal of 388254540 is 45452883.

It is a super-2 number, since 2×388254540² = 301483175661223200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388254541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102510 + ... + 106229.

It is an arithmetic number, because the mean of its divisors is an integer number (23378880).

Almost surely, 2^388254540 is an apocalyptic number.

388254540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388254540 is an abundant number, since it is smaller than the sum of its proper divisors (733931700).

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

388254540 is a wasteful number, since it uses less digits than its factorization.

388254540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208782 (or 208780 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 388254540 is about 19704.1756995821. The cubic root of 388254540 is about 729.5227630732.

It can be divided in two parts, 38825 and 4540, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 388254540 in words is "three hundred eighty-eight million, two hundred fifty-four thousand, five hundred forty".