40232420 has 24 divisors (see below), whose sum is σ = 87214848. Its totient is φ = 15573600.

The previous prime is 40232419. The next prime is 40232429. The reversal of 40232420 is 2423204.

It is not an unprimeable number, because it can be changed into a prime (40232429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31826 + ... + 33065.

It is an arithmetic number, because the mean of its divisors is an integer number (3633952).

Almost surely, 2^40232420 is an apocalyptic number.

It is an amenable number.

40232420 is an abundant number, since it is smaller than the sum of its proper divisors (46982428).

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

40232420 is a wasteful number, since it uses less digits than its factorization.

40232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64931 (or 64929 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40232420 is about 6342.9031208115. The cubic root of 40232420 is about 342.6562982088.

Adding to 40232420 its reverse (2423204), we get a palindrome (42655624).

The spelling of 40232420 in words is "forty million, two hundred thirty-two thousand, four hundred twenty".