201402438 has 32 divisors (see below), whose sum is σ = 411941376. Its totient is φ = 65621088.

The previous prime is 201402437. The next prime is 201402457. The reversal of 201402438 is 834204102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201402431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96595 + ... + 98657.

It is an arithmetic number, because the mean of its divisors is an integer number (12873168).

Almost surely, 2^201402438 is an apocalyptic number.

201402438 is an abundant number, since it is smaller than the sum of its proper divisors (210538938).

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

201402438 is a wasteful number, since it uses less digits than its factorization.

201402438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 201402438 is about 14191.6326756297. The cubic root of 201402438 is about 586.1672828651.

It can be divided in two parts, 20140 and 2438, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 201402438 in words is "two hundred one million, four hundred two thousand, four hundred thirty-eight".