40154023452 has 48 divisors (see below), whose sum is σ = 95489114112. Its totient is φ = 13128198720.

The previous prime is 40154023447. The next prime is 40154023501. The reversal of 40154023452 is 25432045104.

40154023452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40154023452² (a number of 22 digits) contains 22 as substring.

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, 2744677 + ... + 2759267.

It is an arithmetic number, because the mean of its divisors is an integer number (1989356544).

Almost surely, 2^40154023452 is an apocalyptic number.

It is an amenable number.

40154023452 is an abundant number, since it is smaller than the sum of its proper divisors (55335090660).

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

40154023452 is a wasteful number, since it uses less digits than its factorization.

40154023452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18978 (or 18976 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 40154023452 its reverse (25432045104), we get a palindrome (65586068556).

The spelling of 40154023452 in words is "forty billion, one hundred fifty-four million, twenty-three thousand, four hundred fifty-two".