36387440 has 20 divisors (see below), whose sum is σ = 84600984. Its totient is φ = 14554944.

The previous prime is 36387437. The next prime is 36387443. The reversal of 36387440 is 4478363.

It is an interprime number because it is at equal distance from previous prime (36387437) and next prime (36387443).

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 36387440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36387443) 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, 227342 + ... + 227501.

Almost surely, 2^36387440 is an apocalyptic number.

It is an amenable number.

36387440 is an abundant number, since it is smaller than the sum of its proper divisors (48213544).

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

36387440 is a wasteful number, since it uses less digits than its factorization.

36387440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454856 (or 454850 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 36387440 is about 6032.2002619276. The cubic root of 36387440 is about 331.3730365304.

The spelling of 36387440 in words is "thirty-six million, three hundred eighty-seven thousand, four hundred forty".