40099426 has 8 divisors (see below), whose sum is σ = 60186960. Its totient is φ = 20037108.

The previous prime is 40099393. The next prime is 40099441. The reversal of 40099426 is 62499004.

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

It is a junction number, because it is equal to n+sod(n) for n = 40099391 and 40099400.

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, 1636 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (7523370).

Almost surely, 2^40099426 is an apocalyptic number.

40099426 is a deficient number, since it is larger than the sum of its proper divisors (20087534).

40099426 is a wasteful number, since it uses less digits than its factorization.

40099426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 40099426 is about 6332.4107573656. The cubic root of 40099426 is about 342.2783149951.

The spelling of 40099426 in words is "forty million, ninety-nine thousand, four hundred twenty-six".