40540452942 has 64 divisors (see below), whose sum is σ = 93798777600. Its totient is φ = 11544583680.

The previous prime is 40540452913. The next prime is 40540452961. The reversal of 40540452942 is 24925404504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40540452942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711984 + ... + 766812.

It is an arithmetic number, because the mean of its divisors is an integer number (1465605900).

Almost surely, 2^40540452942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40540452942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46899388800).

40540452942 is an abundant number, since it is smaller than the sum of its proper divisors (53258324658).

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

40540452942 is a wasteful number, since it uses less digits than its factorization.

40540452942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55521.

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 40540452942 in words is "forty billion, five hundred forty million, four hundred fifty-two thousand, nine hundred forty-two".