1431743490 has 48 divisors (see below), whose sum is σ = 3823150968. Its totient is φ = 371478528.

The previous prime is 1431743447. The next prime is 1431743503. The reversal of 1431743490 is 943471341.

1431743490 is a `hidden beast` number, since 143 + 174 + 349 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1356522561 + 75220929 = 36831^2 + 8673^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211647 + ... + 218306.

Almost surely, 2^1431743490 is an apocalyptic number.

1431743490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1431743490 is an abundant number, since it is smaller than the sum of its proper divisors (2391407478).

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

1431743490 is a wasteful number, since it uses less digits than its factorization.

1431743490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430003 (or 430000 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1431743490 is about 37838.3864613702. The cubic root of 1431743490 is about 1127.0808539649.

The spelling of 1431743490 in words is "one billion, four hundred thirty-one million, seven hundred forty-three thousand, four hundred ninety".