90340406 has 8 divisors (see below), whose sum is σ = 145934544. Its totient is φ = 41695560.

The previous prime is 90340381. The next prime is 90340433. The reversal of 90340406 is 60404309.

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

It is a super-2 number, since 2×90340406² = 16322777912489672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 3474631 = 90340406 / (9 + 0 + 3 + 4 + 0 + 4 + 0 + 6).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737290 + ... + 1737341.

It is an arithmetic number, because the mean of its divisors is an integer number (18241818).

Almost surely, 2^90340406 is an apocalyptic number.

90340406 is a deficient number, since it is larger than the sum of its proper divisors (55594138).

90340406 is a wasteful number, since it uses less digits than its factorization.

90340406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474646.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 90340406 is about 9504.7570195140. The cubic root of 90340406 is about 448.7047627317.

The spelling of 90340406 in words is "ninety million, three hundred forty thousand, four hundred six".