188040430 has 16 divisors (see below), whose sum is σ = 344022624. Its totient is φ = 73982880.

The previous prime is 188040427. The next prime is 188040431. The reversal of 188040430 is 34040881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188040431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153522 + ... + 154741.

It is an arithmetic number, because the mean of its divisors is an integer number (21501414).

Almost surely, 2^188040430 is an apocalyptic number.

188040430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188040430 is a deficient number, since it is larger than the sum of its proper divisors (155982194).

188040430 is a wasteful number, since it uses less digits than its factorization.

188040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308331.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 188040430 is about 13712.7834519473. The cubic root of 188040430 is about 572.9064941680.

The spelling of 188040430 in words is "one hundred eighty-eight million, forty thousand, four hundred thirty".