40280970 has 16 divisors (see below), whose sum is σ = 96674400. Its totient is φ = 10741584.

The previous prime is 40280963. The next prime is 40280987. The reversal of 40280970 is 7908204.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1342699 = 40280970 / (4 + 0 + 2 + 8 + 0 + 9 + 7 + 0).

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, 671320 + ... + 671379.

It is an arithmetic number, because the mean of its divisors is an integer number (6042150).

Almost surely, 2^40280970 is an apocalyptic number.

40280970 is an abundant number, since it is smaller than the sum of its proper divisors (56393430).

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

40280970 is a wasteful number, since it uses less digits than its factorization.

40280970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342709.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 40280970 is about 6346.7290788248. The cubic root of 40280970 is about 342.7940749570.

The spelling of 40280970 in words is "forty million, two hundred eighty thousand, nine hundred seventy".