1431104240 has 20 divisors (see below), whose sum is σ = 3327317544. Its totient is φ = 572441664.

The previous prime is 1431104237. The next prime is 1431104281. The reversal of 1431104240 is 424011341.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8944322 + ... + 8944481.

Almost surely, 2^1431104240 is an apocalyptic number.

1431104240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431104240 is an abundant number, since it is smaller than the sum of its proper divisors (1896213304).

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

1431104240 is a wasteful number, since it uses less digits than its factorization.

1431104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17888816 (or 17888810 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1431104240 is about 37829.9384086202. The cubic root of 1431104240 is about 1126.9130879518.

Adding to 1431104240 its reverse (424011341), we get a palindrome (1855115581).

The spelling of 1431104240 in words is "one billion, four hundred thirty-one million, one hundred four thousand, two hundred forty".