2001746378 has 8 divisors (see below), whose sum is σ = 3013700160. Its totient is φ = 997179660.

The previous prime is 2001746323. The next prime is 2001746401. The reversal of 2001746378 is 8736471002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2001746378² = 8013977123672237768, which contains 22 as substring.

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, 1846088 + ... + 1847171.

It is an arithmetic number, because the mean of its divisors is an integer number (376712520).

Almost surely, 2^2001746378 is an apocalyptic number.

2001746378 is a deficient number, since it is larger than the sum of its proper divisors (1011953782).

2001746378 is a wasteful number, since it uses less digits than its factorization.

2001746378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693532.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2001746378 is about 44740.8803891922. The cubic root of 2001746378 is about 1260.2876596096.

The spelling of 2001746378 in words is "two billion, one million, seven hundred forty-six thousand, three hundred seventy-eight".