40394454 has 16 divisors (see below), whose sum is σ = 82972848. Its totient is φ = 13100832.

The previous prime is 40394429. The next prime is 40394483. The reversal of 40394454 is 45449304.

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 7 ways as a sum of consecutive naturals, for example, 90757 + ... + 91200.

It is an arithmetic number, because the mean of its divisors is an integer number (5185803).

Almost surely, 2^40394454 is an apocalyptic number.

40394454 is an abundant number, since it is smaller than the sum of its proper divisors (42578394).

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

40394454 is a wasteful number, since it uses less digits than its factorization.

40394454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181999.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40394454 is about 6355.6631440000. The cubic root of 40394454 is about 343.1156922303.

The spelling of 40394454 in words is "forty million, three hundred ninety-four thousand, four hundred fifty-four".