40490045 has 8 divisors (see below), whose sum is σ = 51145440. Its totient is φ = 30687120.

The previous prime is 40490033. The next prime is 40490053. The reversal of 40490045 is 54009404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40490045 - 2¹⁰ = 40489021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40489996 and 40490023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213011 + ... + 213200.

It is an arithmetic number, because the mean of its divisors is an integer number (6393180).

Almost surely, 2^40490045 is an apocalyptic number.

It is an amenable number.

40490045 is a deficient number, since it is larger than the sum of its proper divisors (10655395).

40490045 is a wasteful number, since it uses less digits than its factorization.

40490045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426235.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40490045 is about 6363.1788439427. The cubic root of 40490045 is about 343.3861331015.

Adding to 40490045 its reverse (54009404), we get a palindrome (94499449).

The spelling of 40490045 in words is "forty million, four hundred ninety thousand, forty-five".