40534890 has 32 divisors (see below), whose sum is σ = 106128576. Its totient is φ = 9826560.

The previous prime is 40534883. The next prime is 40534909. The reversal of 40534890 is 9843504.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 61087 + ... + 61746.

It is an arithmetic number, because the mean of its divisors is an integer number (3316518).

Almost surely, 2^40534890 is an apocalyptic number.

40534890 is an abundant number, since it is smaller than the sum of its proper divisors (65593686).

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

40534890 is a wasteful number, since it uses less digits than its factorization.

40534890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122854.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 40534890 is about 6366.7016578445. The cubic root of 40534890 is about 343.5128594734.

The spelling of 40534890 in words is "forty million, five hundred thirty-four thousand, eight hundred ninety".