229340040 has 32 divisors (see below), whose sum is σ = 688020480. Its totient is φ = 61157312.

The previous prime is 229340009. The next prime is 229340071. The reversal of 229340040 is 40043922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (229340009) and next prime (229340071).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955464 + ... + 955703.

It is an arithmetic number, because the mean of its divisors is an integer number (21500640).

Almost surely, 2^229340040 is an apocalyptic number.

229340040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229340040 is an abundant number, since it is smaller than the sum of its proper divisors (458680440).

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

229340040 is a wasteful number, since it uses less digits than its factorization.

229340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911181 (or 1911177 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 229340040 is about 15143.9770205848. The cubic root of 229340040 is about 612.1059878806.

Adding to 229340040 its reverse (40043922), we get a palindrome (269383962).

The spelling of 229340040 in words is "two hundred twenty-nine million, three hundred forty thousand, forty".