1641034988 has 12 divisors (see below), whose sum is σ = 2883254472. Its totient is φ = 817248000.

The previous prime is 1641034979. The next prime is 1641034991. The reversal of 1641034988 is 8894301461.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 816245 + ... + 818252.

It is an arithmetic number, because the mean of its divisors is an integer number (240271206).

Almost surely, 2^1641034988 is an apocalyptic number.

It is an amenable number.

1641034988 is a deficient number, since it is larger than the sum of its proper divisors (1242219484).

1641034988 is a wasteful number, since it uses less digits than its factorization.

1641034988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634752 (or 1634750 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1641034988 is about 40509.6900506533. The cubic root of 1641034988 is about 1179.5217318702.

The spelling of 1641034988 in words is "one billion, six hundred forty-one million, thirty-four thousand, nine hundred eighty-eight".