400000150 has 24 divisors (see below), whose sum is σ = 811637784. Its totient is φ = 145454400.

The previous prime is 400000109. The next prime is 400000151. The reversal of 400000150 is 51000004.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000151) 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, 363087 + ... + 364186.

It is an arithmetic number, because the mean of its divisors is an integer number (33818241).

Almost surely, 2^400000150 is an apocalyptic number.

400000150 is an abundant number, since it is smaller than the sum of its proper divisors (411637634).

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

400000150 is a wasteful number, since it uses less digits than its factorization.

400000150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727296 (or 727291 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 400000150 is about 20000.0037499996. The cubic root of 400000150 is about 736.8063918289.

Adding to 400000150 its reverse (51000004), we get a palindrome (451000154).

The spelling of 400000150 in words is "four hundred million, one hundred fifty", and thus it is an aban number.