1402235645 has 8 divisors (see below), whose sum is σ = 1697574456. Its totient is φ = 1111860736.

The previous prime is 1402235603. The next prime is 1402235677. The reversal of 1402235645 is 5465322041.

It can be written as a sum of positive squares in 4 ways, for example, as 1530169 + 1400705476 = 1237^2 + 37426^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1402235645 - 2⁶ = 1402235581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240352 + ... + 1241481.

It is an arithmetic number, because the mean of its divisors is an integer number (212196807).

Almost surely, 2^1402235645 is an apocalyptic number.

It is an amenable number.

1402235645 is a deficient number, since it is larger than the sum of its proper divisors (295338811).

1402235645 is a wasteful number, since it uses less digits than its factorization.

1402235645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481951.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1402235645 is about 37446.4370134196. The cubic root of 1402235645 is about 1119.2840995221.

Adding to 1402235645 its reverse (5465322041), we get a palindrome (6867557686).

The spelling of 1402235645 in words is "one billion, four hundred two million, two hundred thirty-five thousand, six hundred forty-five".