1501020642 has 16 divisors (see below), whose sum is σ = 3274954272. Its totient is φ = 454854720.

The previous prime is 1501020629. The next prime is 1501020707. The reversal of 1501020642 is 2460201051.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11371303 + ... + 11371434.

It is an arithmetic number, because the mean of its divisors is an integer number (204684642).

Almost surely, 2^1501020642 is an apocalyptic number.

1501020642 is an abundant number, since it is smaller than the sum of its proper divisors (1773933630).

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

1501020642 is a wasteful number, since it uses less digits than its factorization.

1501020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22742753.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1501020642 is about 38743.0076529946. The cubic root of 1501020642 is about 1144.9738155629.

Adding to 1501020642 its reverse (2460201051), we get a palindrome (3961221693).

The spelling of 1501020642 in words is "one billion, five hundred one million, twenty thousand, six hundred forty-two".