40290269 has 8 divisors (see below), whose sum is σ = 41402592. Its totient is φ = 39186000.

The previous prime is 40290259. The next prime is 40290277. The reversal of 40290269 is 96209204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40290269 is a prime.

It is a super-2 number, since 2×40290269² = 3246611552184722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40290259) 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, 8927 + ... + 12659.

It is an arithmetic number, because the mean of its divisors is an integer number (5175324).

Almost surely, 2^40290269 is an apocalyptic number.

It is an amenable number.

40290269 is a deficient number, since it is larger than the sum of its proper divisors (1112323).

40290269 is a wasteful number, since it uses less digits than its factorization.

40290269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40290269 is about 6347.4616186315. The cubic root of 40290269 is about 342.8204513232.

The spelling of 40290269 in words is "forty million, two hundred ninety thousand, two hundred sixty-nine".