40798558 has 4 divisors (see below), whose sum is σ = 61197840. Its totient is φ = 20399278.

The previous prime is 40798553. The next prime is 40798561. The reversal of 40798558 is 85589704.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×40798558³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40798553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10199638 + ... + 10199641.

It is an arithmetic number, because the mean of its divisors is an integer number (15299460).

Almost surely, 2^40798558 is an apocalyptic number.

40798558 is a deficient number, since it is larger than the sum of its proper divisors (20399282).

40798558 is a wasteful number, since it uses less digits than its factorization.

40798558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20399281.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 40798558 is about 6387.3748911427. The cubic root of 40798558 is about 344.2560683532.

The spelling of 40798558 in words is "forty million, seven hundred ninety-eight thousand, five hundred fifty-eight".