1043343631 has 16 divisors (see below), whose sum is σ = 1157904000. Its totient is φ = 932136480.

The previous prime is 1043343611. The next prime is 1043343673. The reversal of 1043343631 is 1363433401.

It is a de Polignac number, because none of the positive numbers 2^k-1043343631 is a prime.

It is a super-2 number, since 2×1043343631² = 2177131864696528322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1043343631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043343611) 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, 366345 + ... + 369181.

It is an arithmetic number, because the mean of its divisors is an integer number (72369000).

Almost surely, 2^1043343631 is an apocalyptic number.

1043343631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1043343631 is a deficient number, since it is larger than the sum of its proper divisors (114560369).

1043343631 is a wasteful number, since it uses less digits than its factorization.

1043343631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 1043343631 is about 32300.8301905694. The cubic root of 1043343631 is about 1014.2440215176.

The spelling of 1043343631 in words is "one billion, forty-three million, three hundred forty-three thousand, six hundred thirty-one".