720129454 has 32 divisors (see below), whose sum is σ = 1190661120. Its totient is φ = 323944800.

The previous prime is 720129437. The next prime is 720129457. The reversal of 720129454 is 454921027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720129457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1640167 + ... + 1640605.

It is an arithmetic number, because the mean of its divisors is an integer number (37208160).

Almost surely, 2^720129454 is an apocalyptic number.

720129454 is a deficient number, since it is larger than the sum of its proper divisors (470531666).

720129454 is a wasteful number, since it uses less digits than its factorization.

720129454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 720129454 is about 26835.2278544454. The cubic root of 720129454 is about 896.3346623674.

The spelling of 720129454 in words is "seven hundred twenty million, one hundred twenty-nine thousand, four hundred fifty-four".