40651254 has 128 divisors (see below), whose sum is σ = 109992960. Its totient is φ = 10886400.

The previous prime is 40651253. The next prime is 40651283. The reversal of 40651254 is 45215604.

40651254 is a `hidden beast` number, since 4 + 0 + 651 + 2 + 5 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40651253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 666384 + ... + 666444.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^40651254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40651254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54996480).

40651254 is an abundant number, since it is smaller than the sum of its proper divisors (69341706).

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

40651254 is a wasteful number, since it uses less digits than its factorization.

40651254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40651254 is about 6375.8335925587. The cubic root of 40651254 is about 343.8412542742.

Adding to 40651254 its reverse (45215604), we get a palindrome (85866858).

The spelling of 40651254 in words is "forty million, six hundred fifty-one thousand, two hundred fifty-four".