40425072 has 80 divisors (see below), whose sum is σ = 109412640. Its totient is φ = 12845056.

The previous prime is 40425017. The next prime is 40425107. The reversal of 40425072 is 27052404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157168 + ... + 157424.

It is an arithmetic number, because the mean of its divisors is an integer number (1367658).

Almost surely, 2^40425072 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 40425072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54706320).

40425072 is an abundant number, since it is smaller than the sum of its proper divisors (68987568).

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

40425072 is a wasteful number, since it uses less digits than its factorization.

40425072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40425072 is about 6358.0714057016. The cubic root of 40425072 is about 343.2023614141.

Adding to 40425072 its reverse (27052404), we get a palindrome (67477476).

The spelling of 40425072 in words is "forty million, four hundred twenty-five thousand, seventy-two".