40154224 has 40 divisors (see below), whose sum is σ = 85249008. Its totient is φ = 18170880.

The previous prime is 40154203. The next prime is 40154243. The reversal of 40154224 is 42245104.

It is a happy number.

It is a super-2 number, since 2×40154224² = 3224723410084352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 40154195 and 40154204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58974 + ... + 59650.

Almost surely, 2^40154224 is an apocalyptic number.

40154224 is a gapful number since it is divisible by the number (44) 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 40154224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42624504).

40154224 is an abundant number, since it is smaller than the sum of its proper divisors (45094784).

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

40154224 is a wasteful number, since it uses less digits than its factorization.

40154224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 40154224 is about 6336.7360683557. The cubic root of 40154224 is about 342.4341578728.

Adding to 40154224 its reverse (42245104), we get a palindrome (82399328).

The spelling of 40154224 in words is "forty million, one hundred fifty-four thousand, two hundred twenty-four".