1640000341 has 4 divisors (see below), whose sum is σ = 1874286112. Its totient is φ = 1405714572.

The previous prime is 1640000293. The next prime is 1640000377. The reversal of 1640000341 is 1430000461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1640000341 - 2¹³ = 1639992149 is a prime.

It is a super-2 number, since 2×1640000341² = 5379202236960232562, 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 (1640000641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117142875 + ... + 117142888.

It is an arithmetic number, because the mean of its divisors is an integer number (468571528).

Almost surely, 2^1640000341 is an apocalyptic number.

It is an amenable number.

1640000341 is a deficient number, since it is larger than the sum of its proper divisors (234285771).

1640000341 is an equidigital number, since it uses as much as digits as its factorization.

1640000341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234285770.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1640000341 is about 40496.9176728304. The cubic root of 1640000341 is about 1179.2737897283.

The spelling of 1640000341 in words is "one billion, six hundred forty million, three hundred forty-one", and thus it is an aban number.