40245000 has 80 divisors (see below), whose sum is σ = 125772240. Its totient is φ = 10728000.

The previous prime is 40244993. The next prime is 40245017. The reversal of 40245000 is 54204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13659 + ... + 16341.

It is an arithmetic number, because the mean of its divisors is an integer number (1572153).

Almost surely, 2^40245000 is an apocalyptic number.

40245000 is a gapful number since it is divisible by the number (40) 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 40245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62886120).

40245000 is an abundant number, since it is smaller than the sum of its proper divisors (85527240).

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

40245000 is a wasteful number, since it uses less digits than its factorization.

40245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2693 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40245000 is about 6343.8947027831. The cubic root of 40245000 is about 342.6920087711.

Adding to 40245000 its reverse (54204), we get a palindrome (40299204).

The spelling of 40245000 in words is "forty million, two hundred forty-five thousand".