40300978 has 16 divisors (see below), whose sum is σ = 61369560. Its totient is φ = 19846656.

The previous prime is 40300973. The next prime is 40301017. The reversal of 40300978 is 87900304.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35605089 + 4695889 = 5967^2 + 2167^2 .

It is not an unprimeable number, because it can be changed into a prime (40300973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56488 + ... + 57196.

Almost surely, 2^40300978 is an apocalyptic number.

40300978 is a deficient number, since it is larger than the sum of its proper divisors (21068582).

40300978 is a wasteful number, since it uses less digits than its factorization.

40300978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40300978 is about 6348.3051281425. The cubic root of 40300978 is about 342.8508220892.

The spelling of 40300978 in words is "forty million, three hundred thousand, nine hundred seventy-eight".