40494069 has 48 divisors (see below), whose sum is σ = 74041344. Its totient is φ = 20714400.

The previous prime is 40494059. The next prime is 40494071. The reversal of 40494069 is 96049404.

It is not a de Polignac number, because 40494069 - 2¹³ = 40485877 is a prime.

It is a super-2 number, since 2×40494069² = 3279539248353522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40494059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48792 + ... + 49614.

It is an arithmetic number, because the mean of its divisors is an integer number (1542528).

Almost surely, 2^40494069 is an apocalyptic number.

It is an amenable number.

40494069 is a deficient number, since it is larger than the sum of its proper divisors (33547275).

40494069 is a wasteful number, since it uses less digits than its factorization.

40494069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40494069 is about 6363.4950302487. The cubic root of 40494069 is about 343.3975082435.

It can be divided in two parts, 4049 and 4069, that added together give a palindrome (8118).

The spelling of 40494069 in words is "forty million, four hundred ninety-four thousand, sixty-nine".