40419998 has 16 divisors (see below), whose sum is σ = 61506000. Its totient is φ = 19920000.

The previous prime is 40419991. The next prime is 40420007. The reversal of 40419998 is 89991404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40419991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80753 + ... + 81251.

It is an arithmetic number, because the mean of its divisors is an integer number (3844125).

Almost surely, 2^40419998 is an apocalyptic number.

40419998 is a deficient number, since it is larger than the sum of its proper divisors (21086002).

40419998 is a wasteful number, since it uses less digits than its factorization.

40419998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 40419998 is about 6357.6723728107. The cubic root of 40419998 is about 343.1880016652.

It can be divided in two parts, 404 and 19998, that added together give a palindrome (20402).

The spelling of 40419998 in words is "forty million, four hundred nineteen thousand, nine hundred ninety-eight".