40154830 has 8 divisors (see below), whose sum is σ = 72278712. Its totient is φ = 16061928.

The previous prime is 40154813. The next prime is 40154839. The reversal of 40154830 is 3845104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40154830² = 3224820744657800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40154795 and 40154804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007732 + ... + 2007751.

It is an arithmetic number, because the mean of its divisors is an integer number (9034839).

Almost surely, 2^40154830 is an apocalyptic number.

40154830 is a deficient number, since it is larger than the sum of its proper divisors (32123882).

40154830 is a wasteful number, since it uses less digits than its factorization.

40154830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015490.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40154830 is about 6336.7838845900. The cubic root of 40154830 is about 342.4358805147.

Adding to 40154830 its reverse (3845104), we get a palindrome (43999934).

The spelling of 40154830 in words is "forty million, one hundred fifty-four thousand, eight hundred thirty".