40284556 has 12 divisors (see below), whose sum is σ = 75920992. Its totient is φ = 18592848.

The previous prime is 40284553. The next prime is 40284581. The reversal of 40284556 is 65548204.

40284556 = T₂₄₈₃ + T₂₄₈₄ + ... + T₂₄₉₅.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40284553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387300 + ... + 387403.

Almost surely, 2^40284556 is an apocalyptic number.

It is an amenable number.

40284556 is a deficient number, since it is larger than the sum of its proper divisors (35636436).

40284556 is a wasteful number, since it uses less digits than its factorization.

40284556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774720 (or 774718 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 40284556 is about 6347.0115802636. The cubic root of 40284556 is about 342.8042470315.

The spelling of 40284556 in words is "forty million, two hundred eighty-four thousand, five hundred fifty-six".