801761642 has 16 divisors (see below), whose sum is σ = 1343974464. Its totient is φ = 355548000.

The previous prime is 801761627. The next prime is 801761659. The reversal of 801761642 is 246167108.

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, 443534 + ... + 445337.

It is an arithmetic number, because the mean of its divisors is an integer number (83998404).

Almost surely, 2^801761642 is an apocalyptic number.

801761642 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

801761642 is a deficient number, since it is larger than the sum of its proper divisors (542212822).

801761642 is a wasteful number, since it uses less digits than its factorization.

801761642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888925.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 801761642 is about 28315.3958474890. The cubic root of 801761642 is about 928.9986686593.

It can be divided in two parts, 80176 and 1642, that added together give a palindrome (81818).

The spelling of 801761642 in words is "eight hundred one million, seven hundred sixty-one thousand, six hundred forty-two".