40430000 has 100 divisors (see below), whose sum is σ = 105753648. Its totient is φ = 14880000.

The previous prime is 40429993. The next prime is 40430017. The reversal of 40430000 is 3404.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129845 + ... + 130155.

Almost surely, 2^40430000 is an apocalyptic number.

40430000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52876824).

40430000 is an abundant number, since it is smaller than the sum of its proper divisors (65323648).

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

40430000 is a wasteful number, since it uses less digits than its factorization.

40430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40430000 is about 6358.4589327918. The cubic root of 40430000 is about 343.2163068233.

Adding to 40430000 its reverse (3404), we get a palindrome (40433404).

The spelling of 40430000 in words is "forty million, four hundred thirty thousand".