231400022 has 32 divisors (see below), whose sum is σ = 421521408. Its totient is φ = 93004416.

The previous prime is 231400003. The next prime is 231400049. The reversal of 231400022 is 220004132.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71483 + ... + 74649.

It is an arithmetic number, because the mean of its divisors is an integer number (13172544).

Almost surely, 2^231400022 is an apocalyptic number.

231400022 is a deficient number, since it is larger than the sum of its proper divisors (190121386).

231400022 is a wasteful number, since it uses less digits than its factorization.

231400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 231400022 is about 15211.8382189662. The cubic root of 231400022 is about 613.9332174923.

Adding to 231400022 its reverse (220004132), we get a palindrome (451404154).

The spelling of 231400022 in words is "two hundred thirty-one million, four hundred thousand, twenty-two".