430664240 has 20 divisors (see below), whose sum is σ = 1001294544. Its totient is φ = 172265664.

The previous prime is 430664237. The next prime is 430664263. The reversal of 430664240 is 42466034.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×430664240² = 370943375229555200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691572 + ... + 2691731.

Almost surely, 2^430664240 is an apocalyptic number.

430664240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

430664240 is an abundant number, since it is smaller than the sum of its proper divisors (570630304).

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

430664240 is a wasteful number, since it uses less digits than its factorization.

430664240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383316 (or 5383310 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 430664240 is about 20752.4514214586. The cubic root of 430664240 is about 755.1726809967.

The spelling of 430664240 in words is "four hundred thirty million, six hundred sixty-four thousand, two hundred forty".