402047230 has 32 divisors (see below), whose sum is σ = 798372288. Its totient is φ = 144825600.

The previous prime is 402047221. The next prime is 402047231. The reversal of 402047230 is 32740204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402047231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32386 + ... + 43045.

It is an arithmetic number, because the mean of its divisors is an integer number (24949134).

Almost surely, 2^402047230 is an apocalyptic number.

402047230 is a deficient number, since it is larger than the sum of its proper divisors (396325058).

402047230 is a wasteful number, since it uses less digits than its factorization.

402047230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75492.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 402047230 is about 20051.1154303196. The cubic root of 402047230 is about 738.0611712820.

Adding to 402047230 its reverse (32740204), we get a palindrome (434787434).

The spelling of 402047230 in words is "four hundred two million, forty-seven thousand, two hundred thirty".