40398410 has 32 divisors (see below), whose sum is σ = 78769152. Its totient is φ = 14829120.

The previous prime is 40398401. The next prime is 40398433. The reversal of 40398410 is 1489304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24017 + ... + 25643.

It is an arithmetic number, because the mean of its divisors is an integer number (2461536).

Almost surely, 2^40398410 is an apocalyptic number.

40398410 is a deficient number, since it is larger than the sum of its proper divisors (38370742).

40398410 is a wasteful number, since it uses less digits than its factorization.

40398410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40398410 is about 6355.9743548885. The cubic root of 40398410 is about 343.1268927891.

The spelling of 40398410 in words is "forty million, three hundred ninety-eight thousand, four hundred ten".