40425264 has 160 divisors (see below), whose sum is σ = 129991680. Its totient is φ = 11923200.

The previous prime is 40425263. The next prime is 40425299. The reversal of 40425264 is 46252404.

40425264 is a `hidden beast` number, since 404 + 252 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40425263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223254 + ... + 223434.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^40425264 is an apocalyptic number.

40425264 is a gapful number since it is divisible by the number (44) 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 40425264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64995840).

40425264 is an abundant number, since it is smaller than the sum of its proper divisors (89566416).

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

40425264 is a wasteful number, since it uses less digits than its factorization.

40425264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 40425264 is about 6358.0865046018. The cubic root of 40425264 is about 343.2029047629.

Adding to 40425264 its reverse (46252404), we get a palindrome (86677668).

The spelling of 40425264 in words is "forty million, four hundred twenty-five thousand, two hundred sixty-four".