40144154 has 16 divisors (see below), whose sum is σ = 63398592. Its totient is φ = 19027008.

The previous prime is 40144103. The next prime is 40144183. The reversal of 40144154 is 45144104.

It is a happy number.

It is a super-2 number, since 2×40144154² = 3223106200751432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 1337 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (3962412).

Almost surely, 2^40144154 is an apocalyptic number.

40144154 is a deficient number, since it is larger than the sum of its proper divisors (23254438).

40144154 is a wasteful number, since it uses less digits than its factorization.

40144154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 40144154 is about 6335.9414454365. The cubic root of 40144154 is about 342.4055299151.

Adding to 40144154 its reverse (45144104), we get a palindrome (85288258).

The spelling of 40144154 in words is "forty million, one hundred forty-four thousand, one hundred fifty-four".