40998155 has 16 divisors (see below), whose sum is σ = 54982368. Its totient is φ = 29088000.

The previous prime is 40998149. The next prime is 40998193. The reversal of 40998155 is 55189904.

It is a happy number.

It is not a de Polignac number, because 40998155 - 2⁶ = 40998091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

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, 6836 + ... + 11345.

It is an arithmetic number, because the mean of its divisors is an integer number (3436398).

Almost surely, 2^40998155 is an apocalyptic number.

40998155 is a deficient number, since it is larger than the sum of its proper divisors (13984213).

40998155 is a wasteful number, since it uses less digits than its factorization.

40998155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 40998155 is about 6402.9801655167. The cubic root of 40998155 is about 344.8165516348.

The spelling of 40998155 in words is "forty million, nine hundred ninety-eight thousand, one hundred fifty-five".