1641029946 has 16 divisors (see below), whose sum is σ = 3282539904. Its totient is φ = 546929984.

The previous prime is 1641029939. The next prime is 1641029947. The reversal of 1641029946 is 6499201461.

It is a junction number, because it is equal to n+sod(n) for n = 1641029898 and 1641029907.

It is not an unprimeable number, because it can be changed into a prime (1641029947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36895 + ... + 68141.

It is an arithmetic number, because the mean of its divisors is an integer number (205158744).

Almost surely, 2^1641029946 is an apocalyptic number.

1641029946 is an abundant number, since it is smaller than the sum of its proper divisors (1641509958).

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

1641029946 is a wasteful number, since it uses less digits than its factorization.

1641029946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40005.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1641029946 is about 40509.6278185816. The cubic root of 1641029946 is about 1179.5205238613.

The spelling of 1641029946 in words is "one billion, six hundred forty-one million, twenty-nine thousand, nine hundred forty-six".