400070100 has 36 divisors (see below), whose sum is σ = 1157537024. Its totient is φ = 106685280.

The previous prime is 400070057. The next prime is 400070107. The reversal of 400070100 is 1070004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400070107) 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, 666484 + ... + 667083.

Almost surely, 2^400070100 is an apocalyptic number.

It is an amenable number.

400070100 is an abundant number, since it is smaller than the sum of its proper divisors (757466924).

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

400070100 is a wasteful number, since it uses less digits than its factorization.

400070100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333584 (or 1333577 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 400070100 is about 20001.7524232253. The cubic root of 400070100 is about 736.8493389820.

The spelling of 400070100 in words is "four hundred million, seventy thousand, one hundred".