100420802 has 16 divisors (see below), whose sum is σ = 161141400. Its totient is φ = 46768128.

The previous prime is 100420763. The next prime is 100420813. The reversal of 100420802 is 208024001.

It can be written as a sum of positive squares in 4 ways, for example, as 78340201 + 22080601 = 8851^2 + 4699^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 11927 + ... + 18522.

Almost surely, 2^100420802 is an apocalyptic number.

100420802 is a deficient number, since it is larger than the sum of its proper divisors (60720598).

100420802 is a wasteful number, since it uses less digits than its factorization.

100420802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30565.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 100420802 is about 10021.0180121582. The cubic root of 100420802 is about 464.8090355493.

Adding to 100420802 its reverse (208024001), we get a palindrome (308444803).

The spelling of 100420802 in words is "one hundred million, four hundred twenty thousand, eight hundred two".