201432402 has 24 divisors (see below), whose sum is σ = 437843484. Its totient is φ = 66927744.

The previous prime is 201432391. The next prime is 201432437. The reversal of 201432402 is 204234102.

It can be written as a sum of positive squares in 2 ways, for example, as 199063881 + 2368521 = 14109^2 + 1539^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12243 + ... + 23510.

Almost surely, 2^201432402 is an apocalyptic number.

201432402 is an abundant number, since it is smaller than the sum of its proper divisors (236411082).

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

201432402 is a wasteful number, since it uses less digits than its factorization.

201432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36074 (or 36071 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201432402 is about 14192.6883288544. The cubic root of 201432402 is about 586.1963507779.

Adding to 201432402 its reverse (204234102), we get a palindrome (405666504).

The spelling of 201432402 in words is "two hundred one million, four hundred thirty-two thousand, four hundred two".