40425030 has 96 divisors (see below), whose sum is σ = 111870720. Its totient is φ = 10105920.

The previous prime is 40425017. The next prime is 40425107. The reversal of 40425030 is 3052404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40424994 and 40425012.

It is a congruent number.

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, 121965 + ... + 122295.

It is an arithmetic number, because the mean of its divisors is an integer number (1165320).

Almost surely, 2^40425030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40425030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55935360).

40425030 is an abundant number, since it is smaller than the sum of its proper divisors (71445690).

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

40425030 is a wasteful number, since it uses less digits than its factorization.

40425030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40425030 is about 6358.0681028124. The cubic root of 40425030 is about 343.2022425563.

Adding to 40425030 its reverse (3052404), we get a palindrome (43477434).

The spelling of 40425030 in words is "forty million, four hundred twenty-five thousand, thirty".