400076250 has 80 divisors (see below), whose sum is σ = 1142784192. Its totient is φ = 91440000.

The previous prime is 400076239. The next prime is 400076273. The reversal of 400076250 is 52670004.

It is a happy number.

It is a super-2 number, since 2×400076250² = 320122011628125000, 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 400076250.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18630 + ... + 33870.

Almost surely, 2^400076250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400076250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571392096).

400076250 is an abundant number, since it is smaller than the sum of its proper divisors (742707942).

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

400076250 is a wasteful number, since it uses less digits than its factorization.

400076250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15273 (or 15258 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 400076250 is about 20001.9061591639. The cubic root of 400076250 is about 736.8531146538.

The spelling of 400076250 in words is "four hundred million, seventy-six thousand, two hundred fifty".