1641004620 has 48 divisors (see below), whose sum is σ = 4650186240. Its totient is φ = 432327616.

The previous prime is 1641004613. The next prime is 1641004633. The reversal of 1641004620 is 264001461.

It is a super-3 number, since 3×1641004620³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 159780 + ... + 169739.

It is an arithmetic number, because the mean of its divisors is an integer number (96878880).

Almost surely, 2^1641004620 is an apocalyptic number.

1641004620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1641004620 is an abundant number, since it is smaller than the sum of its proper divisors (3009181620).

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

1641004620 is a wasteful number, since it uses less digits than its factorization.

1641004620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329614 (or 329612 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1641004620 is about 40509.3152250195. The cubic root of 1641004620 is about 1179.5144559870.

The spelling of 1641004620 in words is "one billion, six hundred forty-one million, four thousand, six hundred twenty".