40056451 has 8 divisors (see below), whose sum is σ = 40470800. Its totient is φ = 39644640.

The previous prime is 40056431. The next prime is 40056463. The reversal of 40056451 is 15465004.

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

It is a cyclic number.

It is not a de Polignac number, because 40056451 - 2¹³ = 40048259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40056421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47905 + ... + 48733.

It is an arithmetic number, because the mean of its divisors is an integer number (5058850).

Almost surely, 2^40056451 is an apocalyptic number.

40056451 is a deficient number, since it is larger than the sum of its proper divisors (414349).

40056451 is a wasteful number, since it uses less digits than its factorization.

40056451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 40056451 is about 6329.0165902769. The cubic root of 40056451 is about 342.1559967981.

The spelling of 40056451 in words is "forty million, fifty-six thousand, four hundred fifty-one".