1402443225 has 36 divisors (see below), whose sum is σ = 2514096156. Its totient is φ = 747325440.

The previous prime is 1402443167. The next prime is 1402443283. The reversal of 1402443225 is 5223442041.

It is an interprime number because it is at equal distance from previous prime (1402443167) and next prime (1402443283).

It can be written as a sum of positive squares in 6 ways, for example, as 17040384 + 1385402841 = 4128^2 + 37221^2 .

It is not a de Polignac number, because 1402443225 - 2¹¹ = 1402441177 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 379989 + ... + 383661.

Almost surely, 2^1402443225 is an apocalyptic number.

1402443225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1402443225 is a deficient number, since it is larger than the sum of its proper divisors (1111652931).

1402443225 is a wasteful number, since it uses less digits than its factorization.

1402443225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 5378 counting only the distinct ones).

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

The square root of 1402443225 is about 37449.2086031200. The cubic root of 1402443225 is about 1119.3393278832.

Adding to 1402443225 its reverse (5223442041), we get a palindrome (6625885266).

The spelling of 1402443225 in words is "one billion, four hundred two million, four hundred forty-three thousand, two hundred twenty-five".