36457440 has 96 divisors (see below), whose sum is σ = 115831296. Its totient is φ = 9638400.

The previous prime is 36457403. The next prime is 36457451. The reversal of 36457440 is 4475463.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72229 + ... + 72731.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 2^36457440 is an apocalyptic number.

36457440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36457440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57915648).

36457440 is an abundant number, since it is smaller than the sum of its proper divisors (79373856).

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

36457440 is a wasteful number, since it uses less digits than its factorization.

36457440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 36457440 is about 6037.9996687645. Note that the first 3 decimals coincide. The cubic root of 36457440 is about 331.5853923506.

The spelling of 36457440 in words is "thirty-six million, four hundred fifty-seven thousand, four hundred forty".