40207456 has 48 divisors (see below), whose sum is σ = 84173040. Its totient is φ = 18869760.

The previous prime is 40207423. The next prime is 40207469. The reversal of 40207456 is 65470204.

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, 33751 + ... + 34921.

It is an arithmetic number, because the mean of its divisors is an integer number (1753605).

Almost surely, 2^40207456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40207456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42086520).

40207456 is an abundant number, since it is smaller than the sum of its proper divisors (43965584).

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

40207456 is a wasteful number, since it uses less digits than its factorization.

40207456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 40207456 is about 6340.9349468355. The cubic root of 40207456 is about 342.5854114157.

It can be divided in two parts, 4020 and 7456, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 40207456 in words is "forty million, two hundred seven thousand, four hundred fifty-six".