40485900 has 144 divisors (see below), whose sum is σ = 144268544. Its totient is φ = 8536320.

The previous prime is 40485877. The next prime is 40485947. The reversal of 40485900 is 958404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26559 + ... + 28041.

Almost surely, 2^40485900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40485900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72134272).

40485900 is an abundant number, since it is smaller than the sum of its proper divisors (103782644).

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

40485900 is a wasteful number, since it uses less digits than its factorization.

40485900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 40485900 is about 6362.8531336186. The cubic root of 40485900 is about 343.3744151258.

The spelling of 40485900 in words is "forty million, four hundred eighty-five thousand, nine hundred".