40154730 has 64 divisors (see below), whose sum is σ = 120158208. Its totient is φ = 8343360.

The previous prime is 40154717. The next prime is 40154743. The reversal of 40154730 is 3745104.

40154730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40154717) and next prime (40154743).

It is a super-2 number, since 2×40154730² = 3224804682745800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40154730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6382 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (1877472).

Almost surely, 2^40154730 is an apocalyptic number.

40154730 is an abundant number, since it is smaller than the sum of its proper divisors (80003478).

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

40154730 is a wasteful number, since it uses less digits than its factorization.

40154730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17411.

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

The square root of 40154730 is about 6336.7759941472. The cubic root of 40154730 is about 342.4355962516.

Adding to 40154730 its reverse (3745104), we get a palindrome (43899834).

The spelling of 40154730 in words is "forty million, one hundred fifty-four thousand, seven hundred thirty".