128302454 has 32 divisors (see below), whose sum is σ = 228493056. Its totient is φ = 52889760.

The previous prime is 128302429. The next prime is 128302457. The reversal of 128302454 is 454203821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128302457) 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, 38744 + ... + 41924.

It is an arithmetic number, because the mean of its divisors is an integer number (7140408).

Almost surely, 2^128302454 is an apocalyptic number.

128302454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128302454 is a deficient number, since it is larger than the sum of its proper divisors (100190602).

128302454 is a wasteful number, since it uses less digits than its factorization.

128302454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 128302454 is about 11327.0673168301. The cubic root of 128302454 is about 504.3650537182.

The spelling of 128302454 in words is "one hundred twenty-eight million, three hundred two thousand, four hundred fifty-four".