40053556 has 24 divisors (see below), whose sum is σ = 72140544. Its totient is φ = 19446720.

The previous prime is 40053551. The next prime is 40053569. The reversal of 40053556 is 65535004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40053551) 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, 45981 + ... + 46843.

It is an arithmetic number, because the mean of its divisors is an integer number (3005856).

Almost surely, 2^40053556 is an apocalyptic number.

It is an amenable number.

40053556 is a deficient number, since it is larger than the sum of its proper divisors (32086988).

40053556 is a wasteful number, since it uses less digits than its factorization.

40053556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 40053556 is about 6328.7878776271. The cubic root of 40053556 is about 342.1477537191.

It can be divided in two parts, 400 and 53556, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 40053556 in words is "forty million, fifty-three thousand, five hundred fifty-six".