1641562244 has 12 divisors (see below), whose sum is σ = 3283124544. Its totient is φ = 703526664.

The previous prime is 1641562217. The next prime is 1641562271. The reversal of 1641562244 is 4422651461.

It is an interprime number because it is at equal distance from previous prime (1641562217) and next prime (1641562271).

1641562244 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29313584 + ... + 29313639.

It is an arithmetic number, because the mean of its divisors is an integer number (273593712).

Almost surely, 2^1641562244 is an apocalyptic number.

1641562244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1641562244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1641562244 is a wasteful number, since it uses less digits than its factorization.

1641562244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58627234 (or 58627232 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 1641562244 is about 40516.1973042881. The cubic root of 1641562244 is about 1179.6480430745.

The spelling of 1641562244 in words is "one billion, six hundred forty-one million, five hundred sixty-two thousand, two hundred forty-four".