40034155 has 16 divisors (see below), whose sum is σ = 55837440. Its totient is φ = 26985312.

The previous prime is 40034129. The next prime is 40034179. The reversal of 40034155 is 55143004.

It is a cyclic number.

It is not a de Polignac number, because 40034155 - 2¹⁵ = 40001387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7629 + ... + 11758.

It is an arithmetic number, because the mean of its divisors is an integer number (3489840).

Almost surely, 2^40034155 is an apocalyptic number.

40034155 is a deficient number, since it is larger than the sum of its proper divisors (15803285).

40034155 is a wasteful number, since it uses less digits than its factorization.

40034155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19458.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40034155 is about 6327.2549340136. The cubic root of 40034155 is about 342.0925020237.

Adding to 40034155 its reverse (55143004), we get a palindrome (95177159).

The spelling of 40034155 in words is "forty million, thirty-four thousand, one hundred fifty-five".