40150000 has 120 divisors (see below), whose sum is σ = 107524368. Its totient is φ = 14400000.

The previous prime is 40149953. The next prime is 40150001. The reversal of 40150000 is 5104.

It is a super-2 number, since 2×40150000² = 3224045000000000, which contains 22 as substring.

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 (40150001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549964 + ... + 550036.

Almost surely, 2^40150000 is an apocalyptic number.

40150000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53762184).

40150000 is an abundant number, since it is smaller than the sum of its proper divisors (67374368).

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

40150000 is an equidigital number, since it uses as much as digits as its factorization.

40150000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 91 counting only the distinct ones).

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

The square root of 40150000 is about 6336.4027649764. The cubic root of 40150000 is about 342.4221500650.

Adding to 40150000 its reverse (5104), we get a palindrome (40155104).

Subtracting from 40150000 its reverse (5104), we obtain a square (40144896 = 6336²).

The spelling of 40150000 in words is "forty million, one hundred fifty thousand".