40455408 has 80 divisors (see below), whose sum is σ = 125745920. Its totient is φ = 10948608.

The previous prime is 40455407. The next prime is 40455419. The reversal of 40455408 is 80455404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40455407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3216 + ... + 9552.

It is an arithmetic number, because the mean of its divisors is an integer number (1571824).

Almost surely, 2^40455408 is an apocalyptic number.

40455408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40455408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62872960).

40455408 is an abundant number, since it is smaller than the sum of its proper divisors (85290512).

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

40455408 is a wasteful number, since it uses less digits than its factorization.

40455408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 40455408 is about 6360.4565873843. The cubic root of 40455408 is about 343.2881892027.

It can be divided in two parts, 4045 and 5408, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 40455408 in words is "forty million, four hundred fifty-five thousand, four hundred eight".