1403431420 has 24 divisors (see below), whose sum is σ = 3015747504. Its totient is φ = 548317056.

The previous prime is 1403431391. The next prime is 1403431439. The reversal of 1403431420 is 241343041.

It is a junction number, because it is equal to n+sod(n) for n = 1403431391 and 1403431400.

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, 815089 + ... + 816808.

It is an arithmetic number, because the mean of its divisors is an integer number (125656146).

Almost surely, 2^1403431420 is an apocalyptic number.

1403431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403431420 is an abundant number, since it is smaller than the sum of its proper divisors (1612316084).

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

1403431420 is a wasteful number, since it uses less digits than its factorization.

1403431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631949 (or 1631947 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1403431420 is about 37462.4000832835. The cubic root of 1403431420 is about 1119.6021705680.

Adding to 1403431420 its reverse (241343041), we get a palindrome (1644774461).

It can be divided in two parts, 14034 and 31420, that added together give a palindrome (45454).

The spelling of 1403431420 in words is "one billion, four hundred three million, four hundred thirty-one thousand, four hundred twenty".