40005145254 has 24 divisors (see below), whose sum is σ = 82231192008. Its totient is φ = 12974639040.

The previous prime is 40005145253. The next prime is 40005145387. The reversal of 40005145254 is 45254150004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005145253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2426967 + ... + 2443394.

It is an arithmetic number, because the mean of its divisors is an integer number (3426299667).

Almost surely, 2^40005145254 is an apocalyptic number.

40005145254 is an abundant number, since it is smaller than the sum of its proper divisors (42226046754).

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

40005145254 is a wasteful number, since it uses less digits than its factorization.

40005145254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870440 (or 4870403 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 40005145254 its reverse (45254150004), we get a palindrome (85259295258).

The spelling of 40005145254 in words is "forty billion, five million, one hundred forty-five thousand, two hundred fifty-four".