40497090 has 16 divisors (see below), whose sum is σ = 97193088. Its totient is φ = 10799216.

The previous prime is 40497049. The next prime is 40497091. The reversal of 40497090 is 9079404.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40497091) 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, 674922 + ... + 674981.

It is an arithmetic number, because the mean of its divisors is an integer number (6074568).

Almost surely, 2^40497090 is an apocalyptic number.

40497090 is an abundant number, since it is smaller than the sum of its proper divisors (56695998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40497090 is a wasteful number, since it uses less digits than its factorization.

40497090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349913.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 40497090 is about 6363.7323953793. The cubic root of 40497090 is about 343.4060475852.

The spelling of 40497090 in words is "forty million, four hundred ninety-seven thousand, ninety".