40749898 has 16 divisors (see below), whose sum is σ = 71176320. Its totient is φ = 17134416.

The previous prime is 40749871. The next prime is 40749899. The reversal of 40749898 is 89894704.

It is not an unprimeable number, because it can be changed into a prime (40749899) 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, 26718 + ... + 28201.

It is an arithmetic number, because the mean of its divisors is an integer number (4448520).

Almost surely, 2^40749898 is an apocalyptic number.

40749898 is a deficient number, since it is larger than the sum of its proper divisors (30426422).

40749898 is a wasteful number, since it uses less digits than its factorization.

40749898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54981.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 40749898 is about 6383.5646781403. The cubic root of 40749898 is about 344.1191504056.

It can be divided in two parts, 407 and 49898, that added together give a palindrome (50305).

The spelling of 40749898 in words is "forty million, seven hundred forty-nine thousand, eight hundred ninety-eight".