40277220 has 24 divisors (see below), whose sum is σ = 112776384. Its totient is φ = 10740576.

The previous prime is 40277189. The next prime is 40277231. The reversal of 40277220 is 2277204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335584 + ... + 335703.

It is an arithmetic number, because the mean of its divisors is an integer number (4699016).

Almost surely, 2^40277220 is an apocalyptic number.

It is an amenable number.

40277220 is an abundant number, since it is smaller than the sum of its proper divisors (72499164).

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

40277220 is a wasteful number, since it uses less digits than its factorization.

40277220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671299 (or 671297 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 40277220 is about 6346.4336441816. The cubic root of 40277220 is about 342.7834370332.

The spelling of 40277220 in words is "forty million, two hundred seventy-seven thousand, two hundred twenty".