2001262678 has 16 divisors (see below), whose sum is σ = 3211249104. Its totient is φ = 932060160.

The previous prime is 2001262667. The next prime is 2001262687. The reversal of 2001262678 is 8762621002.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300108 + ... + 306703.

It is an arithmetic number, because the mean of its divisors is an integer number (200703069).

Almost surely, 2^2001262678 is an apocalyptic number.

2001262678 is a deficient number, since it is larger than the sum of its proper divisors (1209986426).

2001262678 is a wasteful number, since it uses less digits than its factorization.

2001262678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606927.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2001262678 is about 44735.4744917275. The cubic root of 2001262678 is about 1260.1861398807.

The spelling of 2001262678 in words is "two billion, one million, two hundred sixty-two thousand, six hundred seventy-eight".