1431046540 has 48 divisors (see below), whose sum is σ = 3746744064. Its totient is φ = 446040000.

The previous prime is 1431046537. The next prime is 1431046543. The reversal of 1431046540 is 456401341.

It is an interprime number because it is at equal distance from previous prime (1431046537) and next prime (1431046543).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1431046499 and 1431046508.

It is not an unprimeable number, because it can be changed into a prime (1431046543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463086 + ... + 466165.

It is an arithmetic number, because the mean of its divisors is an integer number (78057168).

Almost surely, 2^1431046540 is an apocalyptic number.

1431046540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431046540 is an abundant number, since it is smaller than the sum of its proper divisors (2315697524).

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

1431046540 is a wasteful number, since it uses less digits than its factorization.

1431046540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929278 (or 929276 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1431046540 is about 37829.1757774340. The cubic root of 1431046540 is about 1126.8979425936.

Adding to 1431046540 its reverse (456401341), we get a palindrome (1887447881).

The spelling of 1431046540 in words is "one billion, four hundred thirty-one million, forty-six thousand, five hundred forty".