1340000431 has 32 divisors (see below), whose sum is σ = 1719553536. Its totient is φ = 1014000000.

The previous prime is 1340000429. The next prime is 1340000461.

1340000431 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1340000431 - 2¹ = 1340000429 is a prime.

It is a super-2 number, since 2×1340000431² = 3591202310160371522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340000411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410556 + ... + 413806.

It is an arithmetic number, because the mean of its divisors is an integer number (53736048).

Almost surely, 2^1340000431 is an apocalyptic number.

1340000431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1340000431 is a deficient number, since it is larger than the sum of its proper divisors (379553105).

1340000431 is a wasteful number, since it uses less digits than its factorization.

1340000431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1340000431 is about 36606.0163224572. The cubic root of 1340000431 is about 1102.4738896503.

It can be divided in two parts, 1340000 and 431, that added together give a palindrome (1340431).

The spelling of 1340000431 in words is "one billion, three hundred forty million, four hundred thirty-one", and thus it is an aban number.