40098220 has 12 divisors (see below), whose sum is σ = 84206304. Its totient is φ = 16039280.

The previous prime is 40098217. The next prime is 40098239. The reversal of 40098220 is 2289004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002436 + ... + 1002475.

It is an arithmetic number, because the mean of its divisors is an integer number (7017192).

Almost surely, 2^40098220 is an apocalyptic number.

It is an amenable number.

40098220 is an abundant number, since it is smaller than the sum of its proper divisors (44108084).

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

40098220 is a wasteful number, since it uses less digits than its factorization.

40098220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004920 (or 2004918 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 40098220 is about 6332.3155322520. The cubic root of 40098220 is about 342.2748835928.

The spelling of 40098220 in words is "forty million, ninety-eight thousand, two hundred twenty".