201440434 has 32 divisors (see below), whose sum is σ = 332083584. Its totient is φ = 91082880.

The previous prime is 201440389. The next prime is 201440443. The reversal of 201440434 is 434044102.

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, 400227 + ... + 400729.

It is an arithmetic number, because the mean of its divisors is an integer number (10377612).

Almost surely, 2^201440434 is an apocalyptic number.

201440434 is a deficient number, since it is larger than the sum of its proper divisors (130643150).

201440434 is a wasteful number, since it uses less digits than its factorization.

201440434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 201440434 is about 14192.9712886344. The cubic root of 201440434 is about 586.2041420873.

Adding to 201440434 its reverse (434044102), we get a palindrome (635484536).

The spelling of 201440434 in words is "two hundred one million, four hundred forty thousand, four hundred thirty-four".