100400470 has 32 divisors (see below), whose sum is σ = 192261600. Its totient is φ = 37618176.

The previous prime is 100400437. The next prime is 100400473. The reversal of 100400470 is 74004001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100400473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37641 + ... + 40219.

It is an arithmetic number, because the mean of its divisors is an integer number (6008175).

Almost surely, 2^100400470 is an apocalyptic number.

100400470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100400470 is a deficient number, since it is larger than the sum of its proper divisors (91861130).

100400470 is a wasteful number, since it uses less digits than its factorization.

100400470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 100400470 is about 10020.0034930134. The cubic root of 100400470 is about 464.7776637783. Note that the first 3 decimals are identical.

Adding to 100400470 its reverse (74004001), we get a palindrome (174404471).

The spelling of 100400470 in words is "one hundred million, four hundred thousand, four hundred seventy".