40547970 has 24 divisors (see below), whose sum is σ = 105424956. Its totient is φ = 10812768.

The previous prime is 40547959. The next prime is 40547987. The reversal of 40547970 is 7974504.

It is a happy number.

40547970 is a `hidden beast` number, since 40 + 547 + 9 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37933281 + 2614689 = 6159^2 + 1617^2 .

It is a super-2 number, since 2×40547970² = 3288275742241800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225177 + ... + 225356.

Almost surely, 2^40547970 is an apocalyptic number.

40547970 is an abundant number, since it is smaller than the sum of its proper divisors (64876986).

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

40547970 is a wasteful number, since it uses less digits than its factorization.

40547970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450546 (or 450543 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40547970 is about 6367.7287944761. The cubic root of 40547970 is about 343.5498043127.

The spelling of 40547970 in words is "forty million, five hundred forty-seven thousand, nine hundred seventy".