1403220402 has 16 divisors (see below), whose sum is σ = 3118267680. Its totient is φ = 467740116.

The previous prime is 1403220383. The next prime is 1403220407. The reversal of 1403220402 is 2040223041.

1403220402 is a `hidden beast` number, since 1 + 40 + 3 + 220 + 402 = 666.

1403220402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1403220407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12992728 + ... + 12992835.

It is an arithmetic number, because the mean of its divisors is an integer number (194891730).

Almost surely, 2^1403220402 is an apocalyptic number.

1403220402 is an abundant number, since it is smaller than the sum of its proper divisors (1715047278).

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

1403220402 is a wasteful number, since it uses less digits than its factorization.

1403220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25985574 (or 25985568 counting only the distinct ones).

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

The square root of 1403220402 is about 37459.5835801734. The cubic root of 1403220402 is about 1119.5460538127.

Adding to 1403220402 its reverse (2040223041), we get a palindrome (3443443443).

The spelling of 1403220402 in words is "one billion, four hundred three million, two hundred twenty thousand, four hundred two".