919454464 has 72 divisors (see below), whose sum is σ = 1887740288. Its totient is φ = 446791680.

The previous prime is 919454449. The next prime is 919454489. The reversal of 919454464 is 464454919.

It is a super-2 number, since 2×919454464² = 1690793022739054592, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1514449 + ... + 1515055.

Almost surely, 2^919454464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 919454464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943870144).

919454464 is an abundant number, since it is smaller than the sum of its proper divisors (968285824).

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

919454464 is an equidigital number, since it uses as much as digits as its factorization.

919454464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 767 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 919454464 is about 30322.5075480245. The cubic root of 919454464 is about 972.3965482746.

The spelling of 919454464 in words is "nine hundred nineteen million, four hundred fifty-four thousand, four hundred sixty-four".