40154334 has 96 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 11088000.

The previous prime is 40154333. The next prime is 40154339. The reversal of 40154334 is 43345104.

It is a super-2 number, since 2×40154334² = 3224741077967112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 565519 + ... + 565589.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^40154334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40154334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48263040).

40154334 is an abundant number, since it is smaller than the sum of its proper divisors (56371746).

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

40154334 is a wasteful number, since it uses less digits than its factorization.

40154334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40154334 is about 6336.7447478970. The cubic root of 40154334 is about 342.4344705648.

Adding to 40154334 its reverse (43345104), we get a palindrome (83499438).

The spelling of 40154334 in words is "forty million, one hundred fifty-four thousand, three hundred thirty-four".