144435402 has 12 divisors (see below), whose sum is σ = 312943410. Its totient is φ = 48145128.

The previous prime is 144435337. The next prime is 144435407. The reversal of 144435402 is 204534441.

It is a happy number.

144435402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143496441 + 938961 = 11979^2 + 969^2 .

It is not an unprimeable number, because it can be changed into a prime (144435407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4012077 + ... + 4012112.

Almost surely, 2^144435402 is an apocalyptic number.

144435402 is an abundant number, since it is smaller than the sum of its proper divisors (168508008).

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

144435402 is a wasteful number, since it uses less digits than its factorization.

144435402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8024197 (or 8024194 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 144435402 is about 12018.1280572309. The cubic root of 144435402 is about 524.6760232448.

Adding to 144435402 its reverse (204534441), we get a palindrome (348969843).

The spelling of 144435402 in words is "one hundred forty-four million, four hundred thirty-five thousand, four hundred two".