40455142 has 32 divisors (see below), whose sum is σ = 78624000. Its totient is φ = 15160608.

The previous prime is 40455119. The next prime is 40455143. The reversal of 40455142 is 24155404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40455143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392 + ... + 9307.

It is an arithmetic number, because the mean of its divisors is an integer number (2457000).

Almost surely, 2^40455142 is an apocalyptic number.

40455142 is a deficient number, since it is larger than the sum of its proper divisors (38168858).

40455142 is a wasteful number, since it uses less digits than its factorization.

40455142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11740.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 40455142 is about 6360.4356769014. The cubic root of 40455142 is about 343.2874368116.

The spelling of 40455142 in words is "forty million, four hundred fifty-five thousand, one hundred forty-two".