1403222240 has 48 divisors (see below), whose sum is σ = 3788703072. Its totient is φ = 481104384.

The previous prime is 1403222239. The next prime is 1403222243. The reversal of 1403222240 is 422223041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403222243) 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, 625319 + ... + 627558.

It is an arithmetic number, because the mean of its divisors is an integer number (78931314).

Almost surely, 2^1403222240 is an apocalyptic number.

1403222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403222240 is an abundant number, since it is smaller than the sum of its proper divisors (2385480832).

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

1403222240 is a wasteful number, since it uses less digits than its factorization.

1403222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252899 (or 1252891 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1403222240 is about 37459.6081132732. The cubic root of 1403222240 is about 1119.5465426228.

Adding to 1403222240 its reverse (422223041), we get a palindrome (1825445281).

The spelling of 1403222240 in words is "one billion, four hundred three million, two hundred twenty-two thousand, two hundred forty".