100622840 has 16 divisors (see below), whose sum is σ = 226401480. Its totient is φ = 40249120.

The previous prime is 100622831. The next prime is 100622843. The reversal of 100622840 is 48226001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100622843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257746 + ... + 1257825.

Almost surely, 2^100622840 is an apocalyptic number.

100622840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100622840 is an abundant number, since it is smaller than the sum of its proper divisors (125778640).

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

100622840 is a wasteful number, since it uses less digits than its factorization.

100622840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515582 (or 2515578 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 100622840 is about 10031.0936592178. The cubic root of 100622840 is about 465.1205453074.

Adding to 100622840 its reverse (48226001), we get a palindrome (148848841).

The spelling of 100622840 in words is "one hundred million, six hundred twenty-two thousand, eight hundred forty".