1641049572 has 48 divisors (see below), whose sum is σ = 3900500352. Its totient is φ = 536858880.

The previous prime is 1641049519. The next prime is 1641049583. The reversal of 1641049572 is 2759401461.

It is a super-2 number, since 2×1641049572² = 5386087395522766368, 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 1641049572.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365968 + ... + 370424.

It is an arithmetic number, because the mean of its divisors is an integer number (81260424).

Almost surely, 2^1641049572 is an apocalyptic number.

1641049572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1641049572 is an abundant number, since it is smaller than the sum of its proper divisors (2259450780).

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

1641049572 is a wasteful number, since it uses less digits than its factorization.

1641049572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1641049572 is about 40509.8700565677. The cubic root of 1641049572 is about 1179.5252260257.

The spelling of 1641049572 in words is "one billion, six hundred forty-one million, forty-nine thousand, five hundred seventy-two".