2006407642 has 4 divisors (see below), whose sum is σ = 3009611466. Its totient is φ = 1003203820.

The previous prime is 2006407633. The next prime is 2006407687. The reversal of 2006407642 is 2467046002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1885209561 + 121198081 = 43419^2 + 11009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501601909 + ... + 501601912.

Almost surely, 2^2006407642 is an apocalyptic number.

2006407642 is a deficient number, since it is larger than the sum of its proper divisors (1003203824).

2006407642 is a wasteful number, since it uses less digits than its factorization.

2006407642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003203823.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 2006407642 is about 44792.9418770413. The cubic root of 2006407642 is about 1261.2651360174.

The spelling of 2006407642 in words is "two billion, six million, four hundred seven thousand, six hundred forty-two".