426991464 has 24 divisors (see below), whose sum is σ = 1156435410. Its totient is φ = 142330464.

The previous prime is 426991457. The next prime is 426991471. The reversal of 426991464 is 464199624.

426991464 is a `hidden beast` number, since 42 + 69 + 91 + 464 = 666.

It is an interprime number because it is at equal distance from previous prime (426991457) and next prime (426991471).

It can be written as a sum of positive squares in only one way, i.e., 269288100 + 157703364 = 16410^2 + 12558^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2965147 + ... + 2965290.

Almost surely, 2^426991464 is an apocalyptic number.

It is an amenable number.

426991464 is an abundant number, since it is smaller than the sum of its proper divisors (729443946).

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

426991464 is a wasteful number, since it uses less digits than its factorization.

426991464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930449 (or 5930442 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 426991464 is about 20663.7717757432. The cubic root of 426991464 is about 753.0198033976.

The spelling of 426991464 in words is "four hundred twenty-six million, nine hundred ninety-one thousand, four hundred sixty-four".