40004154 has 24 divisors (see below), whose sum is σ = 86879520. Its totient is φ = 13303368.

The previous prime is 40004143. The next prime is 40004171. The reversal of 40004154 is 45140004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6027 + ... + 10785.

It is an arithmetic number, because the mean of its divisors is an integer number (3619980).

Almost surely, 2^40004154 is an apocalyptic number.

40004154 is an abundant number, since it is smaller than the sum of its proper divisors (46875366).

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

40004154 is a wasteful number, since it uses less digits than its factorization.

40004154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234 (or 5231 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40004154 is about 6324.8837143461. The cubic root of 40004154 is about 342.0070276590.

Adding to 40004154 its reverse (45140004), we get a palindrome (85144158).

It can be divided in two parts, 40004 and 154, that multiplied together give a palindrome (6160616).

The spelling of 40004154 in words is "forty million, four thousand, one hundred fifty-four".