40774644 has 24 divisors (see below), whose sum is σ = 105712320. Its totient is φ = 13591512.

The previous prime is 40774583. The next prime is 40774693. The reversal of 40774644 is 44647704.

40774644 is a `hidden beast` number, since 4 + 0 + 7 + 7 + 4 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40774599 and 40774608.

It is a congruent number.

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, 188664 + ... + 188879.

It is an arithmetic number, because the mean of its divisors is an integer number (4404680).

Almost surely, 2^40774644 is an apocalyptic number.

It is an amenable number.

40774644 is an abundant number, since it is smaller than the sum of its proper divisors (64937676).

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

40774644 is a wasteful number, since it uses less digits than its factorization.

40774644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377556 (or 377548 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 40774644 is about 6385.5026427056. The cubic root of 40774644 is about 344.1887935193.

The spelling of 40774644 in words is "forty million, seven hundred seventy-four thousand, six hundred forty-four".