100556946 has 24 divisors (see below), whose sum is σ = 248998464. Its totient is φ = 28730520.

The previous prime is 100556941. The next prime is 100556957. The reversal of 100556946 is 649655001.

100556946 is a `hidden beast` number, since 10 + 0 + 556 + 94 + 6 = 666.

It is a super-2 number, since 2×100556946² = 20223398777693832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100556946.

It is not an unprimeable number, because it can be changed into a prime (100556941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398910 + ... + 399161.

It is an arithmetic number, because the mean of its divisors is an integer number (10374936).

Almost surely, 2^100556946 is an apocalyptic number.

100556946 is an abundant number, since it is smaller than the sum of its proper divisors (148441518).

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

100556946 is a wasteful number, since it uses less digits than its factorization.

100556946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798086 (or 798083 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 100556946 is about 10027.8086339938. The cubic root of 100556946 is about 465.0189933276.

The spelling of 100556946 in words is "one hundred million, five hundred fifty-six thousand, nine hundred forty-six".