1641023450 has 24 divisors (see below), whose sum is σ = 3329786880. Its totient is φ = 596735600.

The previous prime is 1641023443. The next prime is 1641023453. The reversal of 1641023450 is 543201461.

It is not an unprimeable number, because it can be changed into a prime (1641023453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1491290 + ... + 1492389.

It is an arithmetic number, because the mean of its divisors is an integer number (138741120).

Almost surely, 2^1641023450 is an apocalyptic number.

1641023450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1641023450 is an abundant number, since it is smaller than the sum of its proper divisors (1688763430).

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

1641023450 is a wasteful number, since it uses less digits than its factorization.

1641023450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983702 (or 2983697 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1641023450 is about 40509.5476400317. The cubic root of 1641023450 is about 1179.5189674860.

The spelling of 1641023450 in words is "one billion, six hundred forty-one million, twenty-three thousand, four hundred fifty".