40220998 has 16 divisors (see below), whose sum is σ = 62172864. Its totient is φ = 19500480.

The previous prime is 40220987. The next prime is 40221001. The reversal of 40220998 is 89902204.

40220998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26418 + ... + 27898.

It is an arithmetic number, because the mean of its divisors is an integer number (3885804).

Almost surely, 2^40220998 is an apocalyptic number.

40220998 is a deficient number, since it is larger than the sum of its proper divisors (21951866).

40220998 is a wasteful number, since it uses less digits than its factorization.

40220998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40220998 is about 6342.0026805418. The cubic root of 40220998 is about 342.6238683866.

Subtracting from 40220998 its sum of digits (34), we obtain a square (40220964 = 6342²).

The spelling of 40220998 in words is "forty million, two hundred twenty thousand, nine hundred ninety-eight".