40359090 has 16 divisors (see below), whose sum is σ = 96861888. Its totient is φ = 10762416.

The previous prime is 40359079. The next prime is 40359091. The reversal of 40359090 is 9095304.

It is a super-2 number, since 2×40359090² = 3257712291256200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1345303 = 40359090 / (4 + 0 + 3 + 5 + 9 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (40359091) 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, 672622 + ... + 672681.

It is an arithmetic number, because the mean of its divisors is an integer number (6053868).

Almost surely, 2^40359090 is an apocalyptic number.

40359090 is an abundant number, since it is smaller than the sum of its proper divisors (56502798).

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

40359090 is a wasteful number, since it uses less digits than its factorization.

40359090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345313.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 40359090 is about 6352.8804490562. The cubic root of 40359090 is about 343.0155342068.

The spelling of 40359090 in words is "forty million, three hundred fifty-nine thousand, ninety".